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

compiler/testData/diagnostics/tests/inference/coercionToUnit/coercionToUnitForLastLambdaInLambda.fir.kt

@@ -1,13 +0,0 @@
-// !DIAGNOSTICS: -UNUSED_PARAMETER
-
-fun coerceToUnit(f: () -> Unit) {}
-
-class Inv<T>
-
-fun <K> builder(block: Inv<K>.() -> Unit): K = TODO()
-
-fun test() {
-    coerceToUnit {
-        builder {}
-    }
-}

compiler/testData/diagnostics/tests/inference/coercionToUnit/coercionToUnitForLastLambdaInLambda.kt

@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 // !DIAGNOSTICS: -UNUSED_PARAMETER
 
 fun coerceToUnit(f: () -> Unit) {}

compiler/testData/diagnostics/tests/inference/coercionToUnit/coercionWithExplicitTypeArgument.fir.kt

@@ -1,10 +0,0 @@
-// !LANGUAGE: +NewInference
-// !DIAGNOSTICS: -UNUSED_EXPRESSION -UNUSED_VARIABLE
-
-fun foo() {
-    val f = myRun<Unit> {
-        123
-    }
-}
-
-fun <R> myRun(block: () -> R): R = block()

compiler/testData/diagnostics/tests/inference/coercionToUnit/coercionWithExplicitTypeArgument.kt

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