Fix compiler tests

compiler/testData/diagnostics/tests/inference/nestedCalls/arrayAccess.kt

@@ -1,7 +1,7 @@
 package b
 
 class A {
-    fun <T> get(i: Int): List<T> = throw Exception("$i")
+    operator fun <T> get(i: Int): List<T> = throw Exception("$i")
 }
 
 fun bar(l: List<Int>) = l

compiler/testData/diagnostics/tests/inference/nestedCalls/arrayAccess.txt

@@ -7,7 +7,7 @@ package b {
     public final class A {
         public constructor A()
         public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
-        public final fun </*0*/ T> get(/*0*/ i: kotlin.Int): kotlin.List<T>
+        public final operator fun </*0*/ T> get(/*0*/ i: kotlin.Int): kotlin.List<T>
         public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
         public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
     }

compiler/testData/diagnostics/tests/inference/nestedCalls/binaryExpressions.kt

@@ -20,7 +20,7 @@ fun test(z: Z) {
 }
 
 //binary operation expression
-fun <T> Z.plus(a: A<T>): A<T> = a
+operator fun <T> Z.plus(a: A<T>): A<T> = a
 
 fun test1(z: Z) {
     id(z <!TYPE_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>+<!> <!TYPE_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>newA<!>())
@@ -32,7 +32,7 @@ fun test1(z: Z) {
 }
 
 //comparison operation
-fun <T> Z.compareTo(a: A<T>): Int { use(a); return 1 }
+operator fun <T> Z.compareTo(a: A<T>): Int { use(a); return 1 }
 
 fun test2(z: Z) {
     val a: Boolean = id(z <!TYPE_INFERENCE_NO_INFORMATION_FOR_PARAMETER!><<!> <!TYPE_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>newA<!>())

compiler/testData/diagnostics/tests/inference/nestedCalls/binaryExpressions.txt

@@ -11,10 +11,10 @@ package h {
     public fun test5(): kotlin.Unit
     public fun </*0*/ T> toBeOrNot(): kotlin.Boolean
     public fun use(/*0*/ vararg a: kotlin.Any? /*kotlin.Array<out kotlin.Any?>*/): kotlin.Array<out kotlin.Any?>
-    public fun </*0*/ T> h.Z.compareTo(/*0*/ a: h.A<T>): kotlin.Int
+    public operator fun </*0*/ T> h.Z.compareTo(/*0*/ a: h.A<T>): kotlin.Int
     public fun h.Z.equals(/*0*/ any: kotlin.Any): kotlin.Int
     public fun </*0*/ T> h.Z.foo(/*0*/ a: h.A<T>): h.A<T>
-    public fun </*0*/ T> h.Z.plus(/*0*/ a: h.A<T>): h.A<T>
+    public operator fun </*0*/ T> h.Z.plus(/*0*/ a: h.A<T>): h.A<T>
 
     public interface A</*0*/ T> {
         public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean

compiler/testData/diagnostics/tests/inference/nestedCalls/completeNestedCallsForArraySetExpression.kt

@@ -5,4 +5,4 @@ fun test(map: MutableMap<Int, Int>, t: Int) {
 }
 
 //from library
-fun <K, V> MutableMap<K, V>.set(key : K, value : V) : V<!BASE_WITH_NULLABLE_UPPER_BOUND!>?<!> = this.put(key, value)
+operator fun <K, V> MutableMap<K, V>.set(key : K, value : V) : V<!BASE_WITH_NULLABLE_UPPER_BOUND!>?<!> = this.put(key, value)

compiler/testData/diagnostics/tests/inference/nestedCalls/completeNestedCallsForArraySetExpression.txt

@@ -2,4 +2,4 @@ package
 
 public fun </*0*/ T> foo(/*0*/ t: T): T
 public fun test(/*0*/ map: kotlin.MutableMap<kotlin.Int, kotlin.Int>, /*1*/ t: kotlin.Int): kotlin.Unit
-public fun </*0*/ K, /*1*/ V> kotlin.MutableMap<K, V>.set(/*0*/ key: K, /*1*/ value: V): V?
+public operator fun </*0*/ K, /*1*/ V> kotlin.MutableMap<K, V>.set(/*0*/ key: K, /*1*/ value: V): V?

compiler/testData/diagnostics/tests/inference/nestedCalls/completeNestedForVariableAsFunctionCall.kt

@@ -6,7 +6,7 @@ class A(val b: B) {
 }
 
 class B {
-    fun <T> invoke(<!UNUSED_PARAMETER!>f<!>: (T) -> T): MyFunc<T> = throw Exception()
+    operator fun <T> invoke(<!UNUSED_PARAMETER!>f<!>: (T) -> T): MyFunc<T> = throw Exception()
 }
 
 fun id<R>(r: R) = r

compiler/testData/diagnostics/tests/inference/nestedCalls/completeNestedForVariableAsFunctionCall.txt

@@ -16,7 +16,7 @@ package j {
         public constructor B()
         public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
         public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
-        public final fun </*0*/ T> invoke(/*0*/ f: (T) -> T): j.MyFunc<T>
+        public final operator fun </*0*/ T> invoke(/*0*/ f: (T) -> T): j.MyFunc<T>
         public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
     }