Switch kotlin version to 1.8

with appropriate fixes in testdata, tests and other
places.

compiler/testData/diagnostics/testsWithStdLib/coroutines/nonModifierFormForBuiltInWithFun.kt

@@ -4,7 +4,7 @@
 infix fun Int.suspend(c: () -> Unit) { c() }
 
 fun bar() {
-    1 <!MODIFIER_FORM_FOR_NON_BUILT_IN_SUSPEND_FUN_WARNING!>suspend<!> fun() {
+    1 <!MODIFIER_FORM_FOR_NON_BUILT_IN_SUSPEND_FUN_ERROR!>suspend<!> fun() {
         println()
     }
 
@@ -12,7 +12,7 @@ fun bar() {
         println()
     }
 
-    1 <!MODIFIER_FORM_FOR_NON_BUILT_IN_SUSPEND_FUN_WARNING!>suspend<!> @Ann fun() {
+    1 <!MODIFIER_FORM_FOR_NON_BUILT_IN_SUSPEND_FUN_ERROR!>suspend<!> @Ann fun() {
         println()
     }
 }
@@ -22,7 +22,7 @@ fun bar() {
 annotation class Ann
 
 fun main(suspend: WLambdaInvoke) {
-    1 <!MODIFIER_FORM_FOR_NON_BUILT_IN_SUSPEND_FUN_WARNING!>suspend<!> fun() {}
+    1 <!MODIFIER_FORM_FOR_NON_BUILT_IN_SUSPEND_FUN_ERROR!>suspend<!> fun() {}
 }
 
 class WLambdaInvoke {

compiler/testData/diagnostics/testsWithStdLib/coroutines/synchronizedOnSuspend.kt

@@ -2,24 +2,24 @@
 // !DIAGNOSTICS: -UNUSED_PARAMETER
 // SKIP_TXT
 
-<!SYNCHRONIZED_ON_SUSPEND_WARNING!>@Synchronized<!>
+<!SYNCHRONIZED_ON_SUSPEND_ERROR!>@Synchronized<!>
 suspend fun foo(f: () -> Unit): Unit = f()
 
 fun builder(c: suspend () -> Unit) {}
 
 val a: suspend () -> Unit
-    get() = <!SYNCHRONIZED_ON_SUSPEND_WARNING!>@Synchronized<!> {}
-val b: suspend () -> Unit = <!SYNCHRONIZED_ON_SUSPEND_WARNING!>@Synchronized<!> {}
-val c = builder (<!SYNCHRONIZED_ON_SUSPEND_WARNING!>@Synchronized<!> {})
-val d = suspend <!SYNCHRONIZED_ON_SUSPEND_WARNING!>@Synchronized<!> {}
+    get() = <!SYNCHRONIZED_ON_SUSPEND_ERROR!>@Synchronized<!> {}
+val b: suspend () -> Unit = <!SYNCHRONIZED_ON_SUSPEND_ERROR!>@Synchronized<!> {}
+val c = builder (<!SYNCHRONIZED_ON_SUSPEND_ERROR!>@Synchronized<!> {})
+val d = suspend <!SYNCHRONIZED_ON_SUSPEND_ERROR!>@Synchronized<!> {}
 val e = <!WRONG_ANNOTATION_TARGET!>@Synchronized<!> suspend {}
 
 fun test() {
-    <!SYNCHRONIZED_ON_SUSPEND_WARNING!>@Synchronized<!>
+    <!SYNCHRONIZED_ON_SUSPEND_ERROR!>@Synchronized<!>
     suspend fun foo(f: () -> Unit): Unit = f()
 
-    val b: suspend () -> Unit = <!SYNCHRONIZED_ON_SUSPEND_WARNING!>@Synchronized<!> {}
-    val c = builder (<!SYNCHRONIZED_ON_SUSPEND_WARNING!>@Synchronized<!> {})
-    val d = suspend <!SYNCHRONIZED_ON_SUSPEND_WARNING!>@Synchronized<!> {}
+    val b: suspend () -> Unit = <!SYNCHRONIZED_ON_SUSPEND_ERROR!>@Synchronized<!> {}
+    val c = builder (<!SYNCHRONIZED_ON_SUSPEND_ERROR!>@Synchronized<!> {})
+    val d = suspend <!SYNCHRONIZED_ON_SUSPEND_ERROR!>@Synchronized<!> {}
     val e = <!WRONG_ANNOTATION_TARGET!>@Synchronized<!> suspend {}
 }

compiler/testData/diagnostics/testsWithStdLib/inference/annotationsForResolve/notNullAnnotation.kt

@@ -22,5 +22,5 @@ interface TypePredicate : (KotlinType) -> Boolean {
 
 fun <T : Any?> TypePredicate.expectedTypeFor(keys: Iterable<T>): Map<T, TypePredicate> =
     keys.fold(SmartFMap.emptyMap<T, TypePredicate>()) { map, key ->
-        map.plus(<!NULLABLE_TYPE_PARAMETER_AGAINST_NOT_NULL_TYPE_PARAMETER!>key<!>, this)
+        map.plus(<!TYPE_MISMATCH!>key<!>, this)
     }

compiler/testData/diagnostics/testsWithStdLib/inference/annotationsForResolve/notNullAnnotation.txt

@@ -22,7 +22,7 @@ public open class SmartFMap</*0*/ K : kotlin.Any!, /*1*/ V : kotlin.Any!> : kotl
     public abstract override /*1*/ /*fake_override*/ fun get(/*0*/ key: K!): V?
     public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
     public abstract override /*1*/ /*fake_override*/ fun isEmpty(): kotlin.Boolean
-    public open fun plus(/*0*/ @org.jetbrains.annotations.NotNull key: K, /*1*/ value: V!): SmartFMap<K!, V!>!
+    public open fun plus(/*0*/ @org.jetbrains.annotations.NotNull key: K & Any, /*1*/ value: V!): SmartFMap<K!, V!>!
     public abstract override /*1*/ /*fake_override*/ fun put(/*0*/ key: K!, /*1*/ value: V!): V?
     public abstract override /*1*/ /*fake_override*/ fun putAll(/*0*/ from: kotlin.collections.Map<out K!, V!>): kotlin.Unit
     public abstract override /*1*/ /*fake_override*/ fun remove(/*0*/ key: K!): V?

compiler/testData/diagnostics/testsWithStdLib/inference/kt36951.txt

@@ -8,17 +8,17 @@ public final class Base</*0*/ T : [Error type: Cyclic upper bounds]> : kotlin.co
     public open override /*1*/ /*fake_override*/ fun addAll(/*0*/ elements: kotlin.collections.Collection<T>): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun clear(): kotlin.Unit
     public open override /*1*/ /*fake_override*/ fun clone(): kotlin.Any
-    public open override /*1*/ /*fake_override*/ fun contains(/*0*/ element: T): kotlin.Boolean
-    public open override /*1*/ /*fake_override*/ fun containsAll(/*0*/ elements: kotlin.collections.Collection<T>): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun contains(/*0*/ element: T!): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun containsAll(/*0*/ elements: kotlin.collections.Collection<T!>): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
     public final fun foo(): kotlin.Unit
     public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
     public open override /*1*/ /*fake_override*/ fun isEmpty(): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun iterator(): kotlin.collections.MutableIterator<T>
     invisible_fake open override /*1*/ /*fake_override*/ fun readObject(/*0*/ s: java.io.ObjectInputStream!): kotlin.Unit
-    public open override /*1*/ /*fake_override*/ fun remove(/*0*/ element: T): kotlin.Boolean
-    public open override /*1*/ /*fake_override*/ fun removeAll(/*0*/ elements: kotlin.collections.Collection<T>): kotlin.Boolean
-    public open override /*1*/ /*fake_override*/ fun retainAll(/*0*/ elements: kotlin.collections.Collection<T>): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun remove(/*0*/ element: T!): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun removeAll(/*0*/ elements: kotlin.collections.Collection<T!>): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun retainAll(/*0*/ elements: kotlin.collections.Collection<T!>): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun toArray(): kotlin.Array<(out) kotlin.Any!>!
     public open override /*1*/ /*fake_override*/ fun </*0*/ T : kotlin.Any!> toArray(/*0*/ a: kotlin.Array<(out) T!>!): kotlin.Array<(out) T!>!
     public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String

compiler/testData/diagnostics/testsWithStdLib/java/concurrentHashMapContains.txt

@@ -27,8 +27,8 @@ public final class A : java.util.concurrent.ConcurrentHashMap<kotlin.String, kot
     public open override /*1*/ /*fake_override*/ fun computeIfPresent(/*0*/ p0: kotlin.String, /*1*/ p1: java.util.function.BiFunction<in kotlin.String, in kotlin.Int, out kotlin.Int?>): kotlin.Int?
     public open override /*1*/ /*fake_override*/ fun contains(/*0*/ p0: kotlin.Any!): kotlin.Boolean
     public final operator fun contains(/*0*/ x: kotlin.Char): kotlin.Boolean
-    public open override /*1*/ /*fake_override*/ fun containsKey(/*0*/ key: kotlin.String): kotlin.Boolean
-    public open override /*1*/ /*fake_override*/ fun containsValue(/*0*/ value: kotlin.Int): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun containsKey(/*0*/ key: kotlin.String!): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun containsValue(/*0*/ value: kotlin.Int!): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun elements(): java.util.Enumeration<kotlin.Int!>!
     public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun forEach(/*0*/ p0: java.util.function.BiConsumer<in kotlin.String, in kotlin.Int>): kotlin.Unit
@@ -41,8 +41,8 @@ public final class A : java.util.concurrent.ConcurrentHashMap<kotlin.String, kot
     public open override /*1*/ /*fake_override*/ fun forEachValue(/*0*/ p0: kotlin.Long, /*1*/ p1: java.util.function.Consumer<in kotlin.Int!>!): kotlin.Unit
     public open override /*1*/ /*fake_override*/ fun </*0*/ U : kotlin.Any!> forEachValue(/*0*/ p0: kotlin.Long, /*1*/ p1: java.util.function.Function<in kotlin.Int!, out U!>!, /*2*/ p2: java.util.function.Consumer<in U!>!): kotlin.Unit
     invisible_fake final override /*1*/ /*fake_override*/ fun fullAddCount(/*0*/ p0: kotlin.Long, /*1*/ p1: kotlin.Boolean): kotlin.Unit
-    public open override /*1*/ /*fake_override*/ fun get(/*0*/ key: kotlin.String): kotlin.Int?
-    public open override /*1*/ /*fake_override*/ fun getOrDefault(/*0*/ key: kotlin.String, /*1*/ defaultValue: kotlin.Int): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun get(/*0*/ key: kotlin.String!): kotlin.Int?
+    public open override /*1*/ /*fake_override*/ fun getOrDefault(/*0*/ key: kotlin.String!, /*1*/ defaultValue: kotlin.Int!): kotlin.Int
     public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
     invisible_fake final override /*1*/ /*fake_override*/ fun helpTransfer(/*0*/ p0: kotlin.Array<(out) java.util.concurrent.ConcurrentHashMap.Node<kotlin.String!, kotlin.Int!>!>!, /*1*/ p1: java.util.concurrent.ConcurrentHashMap.Node<kotlin.String!, kotlin.Int!>!): kotlin.Array<(out) java.util.concurrent.ConcurrentHashMap.Node<kotlin.String!, kotlin.Int!>!>!
     invisible_fake final override /*1*/ /*fake_override*/ fun initTable(): kotlin.Array<(out) java.util.concurrent.ConcurrentHashMap.Node<kotlin.String!, kotlin.Int!>!>!
@@ -75,8 +75,8 @@ public final class A : java.util.concurrent.ConcurrentHashMap<kotlin.String, kot
     public open override /*1*/ /*fake_override*/ fun reduceValuesToDouble(/*0*/ p0: kotlin.Long, /*1*/ p1: java.util.function.ToDoubleFunction<in kotlin.Int!>!, /*2*/ p2: kotlin.Double, /*3*/ p3: java.util.function.DoubleBinaryOperator!): kotlin.Double
     public open override /*1*/ /*fake_override*/ fun reduceValuesToInt(/*0*/ p0: kotlin.Long, /*1*/ p1: java.util.function.ToIntFunction<in kotlin.Int!>!, /*2*/ p2: kotlin.Int, /*3*/ p3: java.util.function.IntBinaryOperator!): kotlin.Int
     public open override /*1*/ /*fake_override*/ fun reduceValuesToLong(/*0*/ p0: kotlin.Long, /*1*/ p1: java.util.function.ToLongFunction<in kotlin.Int!>!, /*2*/ p2: kotlin.Long, /*3*/ p3: java.util.function.LongBinaryOperator!): kotlin.Long
-    public open override /*1*/ /*fake_override*/ fun remove(/*0*/ key: kotlin.String): kotlin.Int?
-    public open override /*1*/ /*fake_override*/ fun remove(/*0*/ key: kotlin.String, /*1*/ value: kotlin.Int): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun remove(/*0*/ key: kotlin.String!): kotlin.Int?
+    public open override /*1*/ /*fake_override*/ fun remove(/*0*/ key: kotlin.String!, /*1*/ value: kotlin.Int!): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun replace(/*0*/ p0: kotlin.String, /*1*/ p1: kotlin.Int): kotlin.Int?
     public open override /*1*/ /*fake_override*/ fun replace(/*0*/ p0: kotlin.String, /*1*/ p1: kotlin.Int, /*2*/ p2: kotlin.Int): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun replaceAll(/*0*/ p0: java.util.function.BiFunction<in kotlin.String, in kotlin.Int, out kotlin.Int>): kotlin.Unit
@@ -117,8 +117,8 @@ public final class B : java.util.concurrent.ConcurrentHashMap<kotlin.String, kot
     public open override /*1*/ /*fake_override*/ fun computeIfAbsent(/*0*/ p0: kotlin.String, /*1*/ p1: java.util.function.Function<in kotlin.String, out kotlin.Int>): kotlin.Int
     public open override /*1*/ /*fake_override*/ fun computeIfPresent(/*0*/ p0: kotlin.String, /*1*/ p1: java.util.function.BiFunction<in kotlin.String, in kotlin.Int, out kotlin.Int?>): kotlin.Int?
     public open override /*1*/ fun contains(/*0*/ value: kotlin.Any?): kotlin.Boolean
-    public open override /*1*/ /*fake_override*/ fun containsKey(/*0*/ key: kotlin.String): kotlin.Boolean
-    public open override /*1*/ /*fake_override*/ fun containsValue(/*0*/ value: kotlin.Int): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun containsKey(/*0*/ key: kotlin.String!): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun containsValue(/*0*/ value: kotlin.Int!): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun elements(): java.util.Enumeration<kotlin.Int!>!
     public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun forEach(/*0*/ p0: java.util.function.BiConsumer<in kotlin.String, in kotlin.Int>): kotlin.Unit
@@ -131,8 +131,8 @@ public final class B : java.util.concurrent.ConcurrentHashMap<kotlin.String, kot
     public open override /*1*/ /*fake_override*/ fun forEachValue(/*0*/ p0: kotlin.Long, /*1*/ p1: java.util.function.Consumer<in kotlin.Int!>!): kotlin.Unit
     public open override /*1*/ /*fake_override*/ fun </*0*/ U : kotlin.Any!> forEachValue(/*0*/ p0: kotlin.Long, /*1*/ p1: java.util.function.Function<in kotlin.Int!, out U!>!, /*2*/ p2: java.util.function.Consumer<in U!>!): kotlin.Unit
     invisible_fake final override /*1*/ /*fake_override*/ fun fullAddCount(/*0*/ p0: kotlin.Long, /*1*/ p1: kotlin.Boolean): kotlin.Unit
-    public open override /*1*/ /*fake_override*/ fun get(/*0*/ key: kotlin.String): kotlin.Int?
-    public open override /*1*/ /*fake_override*/ fun getOrDefault(/*0*/ key: kotlin.String, /*1*/ defaultValue: kotlin.Int): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun get(/*0*/ key: kotlin.String!): kotlin.Int?
+    public open override /*1*/ /*fake_override*/ fun getOrDefault(/*0*/ key: kotlin.String!, /*1*/ defaultValue: kotlin.Int!): kotlin.Int
     public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
     invisible_fake final override /*1*/ /*fake_override*/ fun helpTransfer(/*0*/ p0: kotlin.Array<(out) java.util.concurrent.ConcurrentHashMap.Node<kotlin.String!, kotlin.Int!>!>!, /*1*/ p1: java.util.concurrent.ConcurrentHashMap.Node<kotlin.String!, kotlin.Int!>!): kotlin.Array<(out) java.util.concurrent.ConcurrentHashMap.Node<kotlin.String!, kotlin.Int!>!>!
     invisible_fake final override /*1*/ /*fake_override*/ fun initTable(): kotlin.Array<(out) java.util.concurrent.ConcurrentHashMap.Node<kotlin.String!, kotlin.Int!>!>!
@@ -165,8 +165,8 @@ public final class B : java.util.concurrent.ConcurrentHashMap<kotlin.String, kot
     public open override /*1*/ /*fake_override*/ fun reduceValuesToDouble(/*0*/ p0: kotlin.Long, /*1*/ p1: java.util.function.ToDoubleFunction<in kotlin.Int!>!, /*2*/ p2: kotlin.Double, /*3*/ p3: java.util.function.DoubleBinaryOperator!): kotlin.Double
     public open override /*1*/ /*fake_override*/ fun reduceValuesToInt(/*0*/ p0: kotlin.Long, /*1*/ p1: java.util.function.ToIntFunction<in kotlin.Int!>!, /*2*/ p2: kotlin.Int, /*3*/ p3: java.util.function.IntBinaryOperator!): kotlin.Int
     public open override /*1*/ /*fake_override*/ fun reduceValuesToLong(/*0*/ p0: kotlin.Long, /*1*/ p1: java.util.function.ToLongFunction<in kotlin.Int!>!, /*2*/ p2: kotlin.Long, /*3*/ p3: java.util.function.LongBinaryOperator!): kotlin.Long
-    public open override /*1*/ /*fake_override*/ fun remove(/*0*/ key: kotlin.String): kotlin.Int?
-    public open override /*1*/ /*fake_override*/ fun remove(/*0*/ key: kotlin.String, /*1*/ value: kotlin.Int): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun remove(/*0*/ key: kotlin.String!): kotlin.Int?
+    public open override /*1*/ /*fake_override*/ fun remove(/*0*/ key: kotlin.String!, /*1*/ value: kotlin.Int!): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun replace(/*0*/ p0: kotlin.String, /*1*/ p1: kotlin.Int): kotlin.Int?
     public open override /*1*/ /*fake_override*/ fun replace(/*0*/ p0: kotlin.String, /*1*/ p1: kotlin.Int, /*2*/ p2: kotlin.Int): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun replaceAll(/*0*/ p0: java.util.function.BiFunction<in kotlin.String, in kotlin.Int, out kotlin.Int>): kotlin.Unit
@@ -207,8 +207,8 @@ public final class C : java.util.concurrent.ConcurrentHashMap<kotlin.String, kot
     public open override /*1*/ /*fake_override*/ fun computeIfAbsent(/*0*/ p0: kotlin.String, /*1*/ p1: java.util.function.Function<in kotlin.String, out kotlin.Int>): kotlin.Int
     public open override /*1*/ /*fake_override*/ fun computeIfPresent(/*0*/ p0: kotlin.String, /*1*/ p1: java.util.function.BiFunction<in kotlin.String, in kotlin.Int, out kotlin.Int?>): kotlin.Int?
     public open override /*1*/ fun contains(/*0*/ value: kotlin.Any?): kotlin.Boolean
-    public open override /*1*/ /*fake_override*/ fun containsKey(/*0*/ key: kotlin.String): kotlin.Boolean
-    public open override /*1*/ /*fake_override*/ fun containsValue(/*0*/ value: kotlin.Int): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun containsKey(/*0*/ key: kotlin.String!): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun containsValue(/*0*/ value: kotlin.Int!): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun elements(): java.util.Enumeration<kotlin.Int!>!
     public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun forEach(/*0*/ p0: java.util.function.BiConsumer<in kotlin.String, in kotlin.Int>): kotlin.Unit
@@ -221,8 +221,8 @@ public final class C : java.util.concurrent.ConcurrentHashMap<kotlin.String, kot
     public open override /*1*/ /*fake_override*/ fun forEachValue(/*0*/ p0: kotlin.Long, /*1*/ p1: java.util.function.Consumer<in kotlin.Int!>!): kotlin.Unit
     public open override /*1*/ /*fake_override*/ fun </*0*/ U : kotlin.Any!> forEachValue(/*0*/ p0: kotlin.Long, /*1*/ p1: java.util.function.Function<in kotlin.Int!, out U!>!, /*2*/ p2: java.util.function.Consumer<in U!>!): kotlin.Unit
     invisible_fake final override /*1*/ /*fake_override*/ fun fullAddCount(/*0*/ p0: kotlin.Long, /*1*/ p1: kotlin.Boolean): kotlin.Unit
-    public open override /*1*/ /*fake_override*/ fun get(/*0*/ key: kotlin.String): kotlin.Int?
-    public open override /*1*/ /*fake_override*/ fun getOrDefault(/*0*/ key: kotlin.String, /*1*/ defaultValue: kotlin.Int): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun get(/*0*/ key: kotlin.String!): kotlin.Int?
+    public open override /*1*/ /*fake_override*/ fun getOrDefault(/*0*/ key: kotlin.String!, /*1*/ defaultValue: kotlin.Int!): kotlin.Int
     public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
     invisible_fake final override /*1*/ /*fake_override*/ fun helpTransfer(/*0*/ p0: kotlin.Array<(out) java.util.concurrent.ConcurrentHashMap.Node<kotlin.String!, kotlin.Int!>!>!, /*1*/ p1: java.util.concurrent.ConcurrentHashMap.Node<kotlin.String!, kotlin.Int!>!): kotlin.Array<(out) java.util.concurrent.ConcurrentHashMap.Node<kotlin.String!, kotlin.Int!>!>!
     invisible_fake final override /*1*/ /*fake_override*/ fun initTable(): kotlin.Array<(out) java.util.concurrent.ConcurrentHashMap.Node<kotlin.String!, kotlin.Int!>!>!
@@ -255,8 +255,8 @@ public final class C : java.util.concurrent.ConcurrentHashMap<kotlin.String, kot
     public open override /*1*/ /*fake_override*/ fun reduceValuesToDouble(/*0*/ p0: kotlin.Long, /*1*/ p1: java.util.function.ToDoubleFunction<in kotlin.Int!>!, /*2*/ p2: kotlin.Double, /*3*/ p3: java.util.function.DoubleBinaryOperator!): kotlin.Double
     public open override /*1*/ /*fake_override*/ fun reduceValuesToInt(/*0*/ p0: kotlin.Long, /*1*/ p1: java.util.function.ToIntFunction<in kotlin.Int!>!, /*2*/ p2: kotlin.Int, /*3*/ p3: java.util.function.IntBinaryOperator!): kotlin.Int
     public open override /*1*/ /*fake_override*/ fun reduceValuesToLong(/*0*/ p0: kotlin.Long, /*1*/ p1: java.util.function.ToLongFunction<in kotlin.Int!>!, /*2*/ p2: kotlin.Long, /*3*/ p3: java.util.function.LongBinaryOperator!): kotlin.Long
-    public open override /*1*/ /*fake_override*/ fun remove(/*0*/ key: kotlin.String): kotlin.Int?
-    public open override /*1*/ /*fake_override*/ fun remove(/*0*/ key: kotlin.String, /*1*/ value: kotlin.Int): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun remove(/*0*/ key: kotlin.String!): kotlin.Int?
+    public open override /*1*/ /*fake_override*/ fun remove(/*0*/ key: kotlin.String!, /*1*/ value: kotlin.Int!): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun replace(/*0*/ p0: kotlin.String, /*1*/ p1: kotlin.Int): kotlin.Int?
     public open override /*1*/ /*fake_override*/ fun replace(/*0*/ p0: kotlin.String, /*1*/ p1: kotlin.Int, /*2*/ p2: kotlin.Int): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun replaceAll(/*0*/ p0: java.util.function.BiFunction<in kotlin.String, in kotlin.Int, out kotlin.Int>): kotlin.Unit

compiler/testData/diagnostics/testsWithStdLib/java/concurrentHashMapContainsError.txt

@@ -27,8 +27,8 @@ public final class A : java.util.concurrent.ConcurrentHashMap<kotlin.String, kot
     public open override /*1*/ /*fake_override*/ fun computeIfPresent(/*0*/ p0: kotlin.String, /*1*/ p1: java.util.function.BiFunction<in kotlin.String, in kotlin.Int, out kotlin.Int?>): kotlin.Int?
     public open override /*1*/ /*fake_override*/ fun contains(/*0*/ p0: kotlin.Any!): kotlin.Boolean
     public final operator fun contains(/*0*/ x: kotlin.Char): kotlin.Boolean
-    public open override /*1*/ /*fake_override*/ fun containsKey(/*0*/ key: kotlin.String): kotlin.Boolean
-    public open override /*1*/ /*fake_override*/ fun containsValue(/*0*/ value: kotlin.Int): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun containsKey(/*0*/ key: kotlin.String!): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun containsValue(/*0*/ value: kotlin.Int!): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun elements(): java.util.Enumeration<kotlin.Int!>!
     public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun forEach(/*0*/ p0: java.util.function.BiConsumer<in kotlin.String, in kotlin.Int>): kotlin.Unit
@@ -41,8 +41,8 @@ public final class A : java.util.concurrent.ConcurrentHashMap<kotlin.String, kot
     public open override /*1*/ /*fake_override*/ fun forEachValue(/*0*/ p0: kotlin.Long, /*1*/ p1: java.util.function.Consumer<in kotlin.Int!>!): kotlin.Unit
     public open override /*1*/ /*fake_override*/ fun </*0*/ U : kotlin.Any!> forEachValue(/*0*/ p0: kotlin.Long, /*1*/ p1: java.util.function.Function<in kotlin.Int!, out U!>!, /*2*/ p2: java.util.function.Consumer<in U!>!): kotlin.Unit
     invisible_fake final override /*1*/ /*fake_override*/ fun fullAddCount(/*0*/ p0: kotlin.Long, /*1*/ p1: kotlin.Boolean): kotlin.Unit
-    public open override /*1*/ /*fake_override*/ fun get(/*0*/ key: kotlin.String): kotlin.Int?
-    public open override /*1*/ /*fake_override*/ fun getOrDefault(/*0*/ key: kotlin.String, /*1*/ defaultValue: kotlin.Int): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun get(/*0*/ key: kotlin.String!): kotlin.Int?
+    public open override /*1*/ /*fake_override*/ fun getOrDefault(/*0*/ key: kotlin.String!, /*1*/ defaultValue: kotlin.Int!): kotlin.Int
     public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
     invisible_fake final override /*1*/ /*fake_override*/ fun helpTransfer(/*0*/ p0: kotlin.Array<(out) java.util.concurrent.ConcurrentHashMap.Node<kotlin.String!, kotlin.Int!>!>!, /*1*/ p1: java.util.concurrent.ConcurrentHashMap.Node<kotlin.String!, kotlin.Int!>!): kotlin.Array<(out) java.util.concurrent.ConcurrentHashMap.Node<kotlin.String!, kotlin.Int!>!>!
     invisible_fake final override /*1*/ /*fake_override*/ fun initTable(): kotlin.Array<(out) java.util.concurrent.ConcurrentHashMap.Node<kotlin.String!, kotlin.Int!>!>!
@@ -75,8 +75,8 @@ public final class A : java.util.concurrent.ConcurrentHashMap<kotlin.String, kot
     public open override /*1*/ /*fake_override*/ fun reduceValuesToDouble(/*0*/ p0: kotlin.Long, /*1*/ p1: java.util.function.ToDoubleFunction<in kotlin.Int!>!, /*2*/ p2: kotlin.Double, /*3*/ p3: java.util.function.DoubleBinaryOperator!): kotlin.Double
     public open override /*1*/ /*fake_override*/ fun reduceValuesToInt(/*0*/ p0: kotlin.Long, /*1*/ p1: java.util.function.ToIntFunction<in kotlin.Int!>!, /*2*/ p2: kotlin.Int, /*3*/ p3: java.util.function.IntBinaryOperator!): kotlin.Int
     public open override /*1*/ /*fake_override*/ fun reduceValuesToLong(/*0*/ p0: kotlin.Long, /*1*/ p1: java.util.function.ToLongFunction<in kotlin.Int!>!, /*2*/ p2: kotlin.Long, /*3*/ p3: java.util.function.LongBinaryOperator!): kotlin.Long
-    public open override /*1*/ /*fake_override*/ fun remove(/*0*/ key: kotlin.String): kotlin.Int?
-    public open override /*1*/ /*fake_override*/ fun remove(/*0*/ key: kotlin.String, /*1*/ value: kotlin.Int): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun remove(/*0*/ key: kotlin.String!): kotlin.Int?
+    public open override /*1*/ /*fake_override*/ fun remove(/*0*/ key: kotlin.String!, /*1*/ value: kotlin.Int!): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun replace(/*0*/ p0: kotlin.String, /*1*/ p1: kotlin.Int): kotlin.Int?
     public open override /*1*/ /*fake_override*/ fun replace(/*0*/ p0: kotlin.String, /*1*/ p1: kotlin.Int, /*2*/ p2: kotlin.Int): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun replaceAll(/*0*/ p0: java.util.function.BiFunction<in kotlin.String, in kotlin.Int, out kotlin.Int>): kotlin.Unit
@@ -117,8 +117,8 @@ public final class B : java.util.concurrent.ConcurrentHashMap<kotlin.String, kot
     public open override /*1*/ /*fake_override*/ fun computeIfAbsent(/*0*/ p0: kotlin.String, /*1*/ p1: java.util.function.Function<in kotlin.String, out kotlin.Int>): kotlin.Int
     public open override /*1*/ /*fake_override*/ fun computeIfPresent(/*0*/ p0: kotlin.String, /*1*/ p1: java.util.function.BiFunction<in kotlin.String, in kotlin.Int, out kotlin.Int?>): kotlin.Int?
     public open override /*1*/ fun contains(/*0*/ value: kotlin.Any?): kotlin.Boolean
-    public open override /*1*/ /*fake_override*/ fun containsKey(/*0*/ key: kotlin.String): kotlin.Boolean
-    public open override /*1*/ /*fake_override*/ fun containsValue(/*0*/ value: kotlin.Int): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun containsKey(/*0*/ key: kotlin.String!): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun containsValue(/*0*/ value: kotlin.Int!): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun elements(): java.util.Enumeration<kotlin.Int!>!
     public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun forEach(/*0*/ p0: java.util.function.BiConsumer<in kotlin.String, in kotlin.Int>): kotlin.Unit
@@ -131,8 +131,8 @@ public final class B : java.util.concurrent.ConcurrentHashMap<kotlin.String, kot
     public open override /*1*/ /*fake_override*/ fun forEachValue(/*0*/ p0: kotlin.Long, /*1*/ p1: java.util.function.Consumer<in kotlin.Int!>!): kotlin.Unit
     public open override /*1*/ /*fake_override*/ fun </*0*/ U : kotlin.Any!> forEachValue(/*0*/ p0: kotlin.Long, /*1*/ p1: java.util.function.Function<in kotlin.Int!, out U!>!, /*2*/ p2: java.util.function.Consumer<in U!>!): kotlin.Unit
     invisible_fake final override /*1*/ /*fake_override*/ fun fullAddCount(/*0*/ p0: kotlin.Long, /*1*/ p1: kotlin.Boolean): kotlin.Unit
-    public open override /*1*/ /*fake_override*/ fun get(/*0*/ key: kotlin.String): kotlin.Int?
-    public open override /*1*/ /*fake_override*/ fun getOrDefault(/*0*/ key: kotlin.String, /*1*/ defaultValue: kotlin.Int): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun get(/*0*/ key: kotlin.String!): kotlin.Int?
+    public open override /*1*/ /*fake_override*/ fun getOrDefault(/*0*/ key: kotlin.String!, /*1*/ defaultValue: kotlin.Int!): kotlin.Int
     public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
     invisible_fake final override /*1*/ /*fake_override*/ fun helpTransfer(/*0*/ p0: kotlin.Array<(out) java.util.concurrent.ConcurrentHashMap.Node<kotlin.String!, kotlin.Int!>!>!, /*1*/ p1: java.util.concurrent.ConcurrentHashMap.Node<kotlin.String!, kotlin.Int!>!): kotlin.Array<(out) java.util.concurrent.ConcurrentHashMap.Node<kotlin.String!, kotlin.Int!>!>!
     invisible_fake final override /*1*/ /*fake_override*/ fun initTable(): kotlin.Array<(out) java.util.concurrent.ConcurrentHashMap.Node<kotlin.String!, kotlin.Int!>!>!
@@ -165,8 +165,8 @@ public final class B : java.util.concurrent.ConcurrentHashMap<kotlin.String, kot
     public open override /*1*/ /*fake_override*/ fun reduceValuesToDouble(/*0*/ p0: kotlin.Long, /*1*/ p1: java.util.function.ToDoubleFunction<in kotlin.Int!>!, /*2*/ p2: kotlin.Double, /*3*/ p3: java.util.function.DoubleBinaryOperator!): kotlin.Double
     public open override /*1*/ /*fake_override*/ fun reduceValuesToInt(/*0*/ p0: kotlin.Long, /*1*/ p1: java.util.function.ToIntFunction<in kotlin.Int!>!, /*2*/ p2: kotlin.Int, /*3*/ p3: java.util.function.IntBinaryOperator!): kotlin.Int
     public open override /*1*/ /*fake_override*/ fun reduceValuesToLong(/*0*/ p0: kotlin.Long, /*1*/ p1: java.util.function.ToLongFunction<in kotlin.Int!>!, /*2*/ p2: kotlin.Long, /*3*/ p3: java.util.function.LongBinaryOperator!): kotlin.Long
-    public open override /*1*/ /*fake_override*/ fun remove(/*0*/ key: kotlin.String): kotlin.Int?
-    public open override /*1*/ /*fake_override*/ fun remove(/*0*/ key: kotlin.String, /*1*/ value: kotlin.Int): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun remove(/*0*/ key: kotlin.String!): kotlin.Int?
+    public open override /*1*/ /*fake_override*/ fun remove(/*0*/ key: kotlin.String!, /*1*/ value: kotlin.Int!): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun replace(/*0*/ p0: kotlin.String, /*1*/ p1: kotlin.Int): kotlin.Int?
     public open override /*1*/ /*fake_override*/ fun replace(/*0*/ p0: kotlin.String, /*1*/ p1: kotlin.Int, /*2*/ p2: kotlin.Int): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun replaceAll(/*0*/ p0: java.util.function.BiFunction<in kotlin.String, in kotlin.Int, out kotlin.Int>): kotlin.Unit
@@ -207,8 +207,8 @@ public final class C : java.util.concurrent.ConcurrentHashMap<kotlin.String, kot
     public open override /*1*/ /*fake_override*/ fun computeIfAbsent(/*0*/ p0: kotlin.String, /*1*/ p1: java.util.function.Function<in kotlin.String, out kotlin.Int>): kotlin.Int
     public open override /*1*/ /*fake_override*/ fun computeIfPresent(/*0*/ p0: kotlin.String, /*1*/ p1: java.util.function.BiFunction<in kotlin.String, in kotlin.Int, out kotlin.Int?>): kotlin.Int?
     public open override /*1*/ fun contains(/*0*/ value: kotlin.Any?): kotlin.Boolean
-    public open override /*1*/ /*fake_override*/ fun containsKey(/*0*/ key: kotlin.String): kotlin.Boolean
-    public open override /*1*/ /*fake_override*/ fun containsValue(/*0*/ value: kotlin.Int): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun containsKey(/*0*/ key: kotlin.String!): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun containsValue(/*0*/ value: kotlin.Int!): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun elements(): java.util.Enumeration<kotlin.Int!>!
     public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun forEach(/*0*/ p0: java.util.function.BiConsumer<in kotlin.String, in kotlin.Int>): kotlin.Unit
@@ -221,8 +221,8 @@ public final class C : java.util.concurrent.ConcurrentHashMap<kotlin.String, kot
     public open override /*1*/ /*fake_override*/ fun forEachValue(/*0*/ p0: kotlin.Long, /*1*/ p1: java.util.function.Consumer<in kotlin.Int!>!): kotlin.Unit
     public open override /*1*/ /*fake_override*/ fun </*0*/ U : kotlin.Any!> forEachValue(/*0*/ p0: kotlin.Long, /*1*/ p1: java.util.function.Function<in kotlin.Int!, out U!>!, /*2*/ p2: java.util.function.Consumer<in U!>!): kotlin.Unit
     invisible_fake final override /*1*/ /*fake_override*/ fun fullAddCount(/*0*/ p0: kotlin.Long, /*1*/ p1: kotlin.Boolean): kotlin.Unit
-    public open override /*1*/ /*fake_override*/ fun get(/*0*/ key: kotlin.String): kotlin.Int?
-    public open override /*1*/ /*fake_override*/ fun getOrDefault(/*0*/ key: kotlin.String, /*1*/ defaultValue: kotlin.Int): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun get(/*0*/ key: kotlin.String!): kotlin.Int?
+    public open override /*1*/ /*fake_override*/ fun getOrDefault(/*0*/ key: kotlin.String!, /*1*/ defaultValue: kotlin.Int!): kotlin.Int
     public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
     invisible_fake final override /*1*/ /*fake_override*/ fun helpTransfer(/*0*/ p0: kotlin.Array<(out) java.util.concurrent.ConcurrentHashMap.Node<kotlin.String!, kotlin.Int!>!>!, /*1*/ p1: java.util.concurrent.ConcurrentHashMap.Node<kotlin.String!, kotlin.Int!>!): kotlin.Array<(out) java.util.concurrent.ConcurrentHashMap.Node<kotlin.String!, kotlin.Int!>!>!
     invisible_fake final override /*1*/ /*fake_override*/ fun initTable(): kotlin.Array<(out) java.util.concurrent.ConcurrentHashMap.Node<kotlin.String!, kotlin.Int!>!>!
@@ -255,8 +255,8 @@ public final class C : java.util.concurrent.ConcurrentHashMap<kotlin.String, kot
     public open override /*1*/ /*fake_override*/ fun reduceValuesToDouble(/*0*/ p0: kotlin.Long, /*1*/ p1: java.util.function.ToDoubleFunction<in kotlin.Int!>!, /*2*/ p2: kotlin.Double, /*3*/ p3: java.util.function.DoubleBinaryOperator!): kotlin.Double
     public open override /*1*/ /*fake_override*/ fun reduceValuesToInt(/*0*/ p0: kotlin.Long, /*1*/ p1: java.util.function.ToIntFunction<in kotlin.Int!>!, /*2*/ p2: kotlin.Int, /*3*/ p3: java.util.function.IntBinaryOperator!): kotlin.Int
     public open override /*1*/ /*fake_override*/ fun reduceValuesToLong(/*0*/ p0: kotlin.Long, /*1*/ p1: java.util.function.ToLongFunction<in kotlin.Int!>!, /*2*/ p2: kotlin.Long, /*3*/ p3: java.util.function.LongBinaryOperator!): kotlin.Long
-    public open override /*1*/ /*fake_override*/ fun remove(/*0*/ key: kotlin.String): kotlin.Int?
-    public open override /*1*/ /*fake_override*/ fun remove(/*0*/ key: kotlin.String, /*1*/ value: kotlin.Int): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun remove(/*0*/ key: kotlin.String!): kotlin.Int?
+    public open override /*1*/ /*fake_override*/ fun remove(/*0*/ key: kotlin.String!, /*1*/ value: kotlin.Int!): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun replace(/*0*/ p0: kotlin.String, /*1*/ p1: kotlin.Int): kotlin.Int?
     public open override /*1*/ /*fake_override*/ fun replace(/*0*/ p0: kotlin.String, /*1*/ p1: kotlin.Int, /*2*/ p2: kotlin.Int): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun replaceAll(/*0*/ p0: java.util.function.BiFunction<in kotlin.String, in kotlin.Int, out kotlin.Int>): kotlin.Unit

compiler/testData/diagnostics/testsWithStdLib/purelyImplementedCollection/customClassMutableCollection.txt

@@ -9,15 +9,15 @@ public fun foo(): kotlin.Unit
     public open override /*2*/ /*fake_override*/ fun add(/*0*/ element: T): kotlin.Boolean
     public open override /*2*/ /*fake_override*/ fun addAll(/*0*/ elements: kotlin.collections.Collection<T>): kotlin.Boolean
     public open override /*2*/ /*fake_override*/ fun clear(): kotlin.Unit
-    public open override /*2*/ /*fake_override*/ fun contains(/*0*/ element: T): kotlin.Boolean
-    public open override /*2*/ /*fake_override*/ fun containsAll(/*0*/ elements: kotlin.collections.Collection<T>): kotlin.Boolean
+    public open override /*2*/ /*fake_override*/ fun contains(/*0*/ element: T!): kotlin.Boolean
+    public open override /*2*/ /*fake_override*/ fun containsAll(/*0*/ elements: kotlin.collections.Collection<T!>): kotlin.Boolean
     public open override /*2*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
     public open override /*2*/ /*fake_override*/ fun hashCode(): kotlin.Int
     public open override /*2*/ /*fake_override*/ fun isEmpty(): kotlin.Boolean
     @java.lang.Override public open override /*2*/ fun iterator(): kotlin.collections.MutableIterator<T>
-    public open override /*2*/ /*fake_override*/ fun remove(/*0*/ element: T): kotlin.Boolean
-    public open override /*2*/ /*fake_override*/ fun removeAll(/*0*/ elements: kotlin.collections.Collection<T>): kotlin.Boolean
-    public open override /*2*/ /*fake_override*/ fun retainAll(/*0*/ elements: kotlin.collections.Collection<T>): kotlin.Boolean
+    public open override /*2*/ /*fake_override*/ fun remove(/*0*/ element: T!): kotlin.Boolean
+    public open override /*2*/ /*fake_override*/ fun removeAll(/*0*/ elements: kotlin.collections.Collection<T!>): kotlin.Boolean
+    public open override /*2*/ /*fake_override*/ fun retainAll(/*0*/ elements: kotlin.collections.Collection<T!>): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun toArray(): kotlin.Array<(out) kotlin.Any!>!
     public open override /*1*/ /*fake_override*/ fun </*0*/ T : kotlin.Any!> toArray(/*0*/ a: kotlin.Array<(out) T!>!): kotlin.Array<(out) T!>!
     public open override /*2*/ /*fake_override*/ fun toString(): kotlin.String

compiler/testData/diagnostics/testsWithStdLib/purelyImplementedCollection/customClassMutableList.txt

@@ -12,24 +12,24 @@ public fun foo(): kotlin.Unit
     public open override /*2*/ /*fake_override*/ fun addAll(/*0*/ index: kotlin.Int, /*1*/ elements: kotlin.collections.Collection<T>): kotlin.Boolean
     public open override /*2*/ /*fake_override*/ fun addAll(/*0*/ elements: kotlin.collections.Collection<T>): kotlin.Boolean
     public open override /*2*/ /*fake_override*/ fun clear(): kotlin.Unit
-    public open override /*2*/ /*fake_override*/ fun contains(/*0*/ element: T): kotlin.Boolean
-    public open override /*2*/ /*fake_override*/ fun containsAll(/*0*/ elements: kotlin.collections.Collection<T>): kotlin.Boolean
+    public open override /*2*/ /*fake_override*/ fun contains(/*0*/ element: T!): kotlin.Boolean
+    public open override /*2*/ /*fake_override*/ fun containsAll(/*0*/ elements: kotlin.collections.Collection<T!>): kotlin.Boolean
     public open override /*2*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
     @java.lang.Override public open override /*2*/ fun get(/*0*/ index: kotlin.Int): T
     public open override /*2*/ /*fake_override*/ fun hashCode(): kotlin.Int
-    public open override /*2*/ /*fake_override*/ fun indexOf(/*0*/ element: T): kotlin.Int
+    public open override /*2*/ /*fake_override*/ fun indexOf(/*0*/ element: T!): kotlin.Int
     public open override /*2*/ /*fake_override*/ fun isEmpty(): kotlin.Boolean
     public open override /*2*/ /*fake_override*/ fun iterator(): kotlin.collections.MutableIterator<T>
-    public open override /*2*/ /*fake_override*/ fun lastIndexOf(/*0*/ element: T): kotlin.Int
+    public open override /*2*/ /*fake_override*/ fun lastIndexOf(/*0*/ element: T!): kotlin.Int
     public open override /*2*/ /*fake_override*/ fun listIterator(): kotlin.collections.MutableListIterator<T>
     public open override /*2*/ /*fake_override*/ fun listIterator(/*0*/ index: kotlin.Int): kotlin.collections.MutableListIterator<T>
     invisible_fake open override /*1*/ /*fake_override*/ fun outOfBoundsMsg(/*0*/ index: kotlin.Int): kotlin.String!
     invisible_fake open override /*1*/ /*fake_override*/ fun rangeCheckForAdd(/*0*/ index: kotlin.Int): kotlin.Unit
-    public open override /*2*/ /*fake_override*/ fun remove(/*0*/ element: T): kotlin.Boolean
-    public open override /*2*/ /*fake_override*/ fun removeAll(/*0*/ elements: kotlin.collections.Collection<T>): kotlin.Boolean
+    public open override /*2*/ /*fake_override*/ fun remove(/*0*/ element: T!): kotlin.Boolean
+    public open override /*2*/ /*fake_override*/ fun removeAll(/*0*/ elements: kotlin.collections.Collection<T!>): kotlin.Boolean
     public open override /*2*/ /*fake_override*/ fun removeAt(/*0*/ index: kotlin.Int): T
     protected/*protected and package*/ open override /*1*/ /*fake_override*/ fun removeRange(/*0*/ fromIndex: kotlin.Int, /*1*/ toIndex: kotlin.Int): kotlin.Unit
-    public open override /*2*/ /*fake_override*/ fun retainAll(/*0*/ elements: kotlin.collections.Collection<T>): kotlin.Boolean
+    public open override /*2*/ /*fake_override*/ fun retainAll(/*0*/ elements: kotlin.collections.Collection<T!>): kotlin.Boolean
     public open override /*2*/ /*fake_override*/ fun set(/*0*/ index: kotlin.Int, /*1*/ element: T): T
     public open override /*2*/ /*fake_override*/ fun subList(/*0*/ fromIndex: kotlin.Int, /*1*/ toIndex: kotlin.Int): kotlin.collections.MutableList<T>
     public open override /*1*/ /*fake_override*/ fun toArray(): kotlin.Array<(out) kotlin.Any!>!