Introduce FIR_IDENTICAL for FIR vs old frontend tests #KT-36879 Fixed

compiler/testData/diagnostics/tests/generics/nullability/capturedTypeWithPlatformSupertype.fir.kt

@@ -1,17 +0,0 @@
-// FILE: First.java
-
-public class First<T extends Sample> {
-    public static <D extends Sample> void bind(First<D> first) {}
-}
-
-// FILE: SubFirst.java
-
-public class SubFirst<D extends Sample> extends First<D> {}
-
-// FILE: test.kt
-
-interface Sample
-
-fun test(s: SubFirst<*>) {
-    First.bind(s)
-}

compiler/testData/diagnostics/tests/generics/nullability/capturedTypeWithPlatformSupertype.kt

@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 // FILE: First.java
 
 public class First<T extends Sample> {

compiler/testData/diagnostics/tests/generics/nullability/correctSubstitutionForIncorporationConstraint.fir.kt

@@ -1,17 +0,0 @@
-// !DIAGNOSTICS: -UNUSED_PARAMETER
-
-// FILE: JClass.java
-
-public class JClass {
-    public <K> void foo(Key<K> key, K value) {}
-}
-
-// FILE: test.kt
-
-class Key<T>
-
-fun <S> select(x: S, y: S): S = x
-
-fun <T> setValue(key: Key<T>, value: T, j: JClass) {
-    j.foo(key, select(value, null))
-}

compiler/testData/diagnostics/tests/generics/nullability/correctSubstitutionForIncorporationConstraint.kt

@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 // !DIAGNOSTICS: -UNUSED_PARAMETER
 
 // FILE: JClass.java

compiler/testData/diagnostics/tests/generics/nullability/kt25182.fir.kt

@@ -1,14 +0,0 @@
-// !LANGUAGE: +NewInference
-// !DIAGNOSTICS: -UNUSED_PARAMETER
-
-abstract class Expr<T>
-
-class Sum<K>(val e: Expr<K>) : Expr<K?>()
-
-private fun <V> times(e: Expr<V>, element: V): Expr<V> = TODO()
-
-private fun <S> foo(e: Expr<S>) {}
-
-fun test(intExpression: Expr<Int>) {
-    foo(Sum(times(intExpression, 42)))
-}

compiler/testData/diagnostics/tests/generics/nullability/kt25182.kt

@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 // !LANGUAGE: +NewInference
 // !DIAGNOSTICS: -UNUSED_PARAMETER