[FIR] Implement NULL_FOR_NONNULL_TYPE diagnostics, fix tests

compiler/testData/diagnostics/tests/j+k/SupertypeArgumentsNullability-NotNull-SpecialTypes.fir.kt

@@ -1,23 +0,0 @@
-// !CHECK_TYPE
-// FILE: A.java
-public class A {}
-
-// FILE: X.java
-import org.jetbrains.annotations.NotNull;
-
-public class X<T> {
-    @NotNull T fooN() {return null;}
-    void barN(@NotNull T a) {}
-}
-
-// FILE: Y.java
-public class Y extends X<String> {
-
-}
-
-// FILE: test.kt
-
-fun main() {
-    checkSubtype<Any>(Y().fooN())
-    Y().barN(<!ARGUMENT_TYPE_MISMATCH!>null<!>);
-}

compiler/testData/diagnostics/tests/j+k/SupertypeArgumentsNullability-NotNull-SpecialTypes.kt

@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 // !CHECK_TYPE
 // FILE: A.java
 public class A {}

compiler/testData/diagnostics/tests/j+k/SupertypeArgumentsNullability-NotNull-UserTypes.fir.kt

@@ -1,23 +0,0 @@
-// !CHECK_TYPE
-// FILE: A.java
-public class A {}
-
-// FILE: X.java
-import org.jetbrains.annotations.NotNull;
-
-public class X<T> {
-    @NotNull T fooN() {return null;}
-    void barN(@NotNull T a) {}
-}
-
-// FILE: Y.java
-public class Y extends X<A> {
-
-}
-
-// FILE: test.kt
-
-fun main() {
-    checkSubtype<Any>(Y().fooN())
-    Y().barN(<!ARGUMENT_TYPE_MISMATCH!>null<!>);
-}

compiler/testData/diagnostics/tests/j+k/SupertypeArgumentsNullability-NotNull-UserTypes.kt

@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 // !CHECK_TYPE
 // FILE: A.java
 public class A {}

compiler/testData/diagnostics/tests/j+k/primitiveOverrides/specializedMap.fir.kt

@@ -100,7 +100,7 @@ public class SpecializedMap extends AbstractSpecializedMap {
 // FILE: main.kt
 fun foo(x: SpecializedMap) {
     x.containsKey(1)
-    x.containsKey(<!ARGUMENT_TYPE_MISMATCH!>null<!>)
+    x.containsKey(<!NULL_FOR_NONNULL_TYPE!>null<!>)
 
     x.<!OVERLOAD_RESOLUTION_AMBIGUITY!>get<!>(2)
     x.<!NONE_APPLICABLE!>get<!>(null)

compiler/testData/diagnostics/tests/j+k/wrongVarianceInJava.fir.kt

@@ -20,5 +20,5 @@ class In<in F> {
 
 fun test() {
     A.foo().x() checkType { _<Any?>() }
-    A.bar().y(<!ARGUMENT_TYPE_MISMATCH!>null<!>)
+    A.bar().y(<!NULL_FOR_NONNULL_TYPE!>null<!>)
 }