Make same tests FIR_IDENTICAL

compiler/testData/diagnostics/tests/operatorsOverloading/kt45503_1.fir.kt

@@ -1,15 +0,0 @@
-// !DIAGNOSTICS: -UNUSED_PARAMETER
-// WITH_RUNTIME
-// SKIP_TXT
-
-class A<T>
-class B<T>(val x: MutableList<T>) : MutableList<T> by x
-
-class C {
-    operator fun <T> get(k: A<T>): T = TODO()
-    operator fun <T> set(k: A<T>, v: T): Unit = TODO()
-}
-
-fun foo() {
-    C()[A<B<Int>>()] += 2
-}

compiler/testData/diagnostics/tests/operatorsOverloading/kt45503_1.kt

@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 // !DIAGNOSTICS: -UNUSED_PARAMETER
 // WITH_RUNTIME
 // SKIP_TXT

compiler/testData/diagnostics/tests/operatorsOverloading/kt45503_2.fir.kt

@@ -1,15 +0,0 @@
-// WITH_RUNTIME
-// SKIP_TXT
-
-class A<T>(var x: T)
-
-interface I
-
-class C {
-    operator fun <T> get(k: A<T>): T = k.x
-    operator fun <T : I> set(k: A<T>, v: T) { k.x = v }
-}
-
-fun foo() {
-    C()[A(mutableListOf(1))] += 2
-}

compiler/testData/diagnostics/tests/operatorsOverloading/kt45503_2.kt

@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 // WITH_RUNTIME
 // SKIP_TXT
 

compiler/testData/diagnostics/tests/operatorsOverloading/kt45503_3.fir.kt

@@ -1,17 +0,0 @@
-// !DIAGNOSTICS: -UNUSED_PARAMETER
-// WITH_RUNTIME
-// SKIP_TXT
-
-class A<T>
-class C
-interface I
-
-class E {
-    operator fun <T> get(k: A<T>): T = TODO()
-    operator fun <T : I> set(k: A<T>, v: T) { TODO() }
-    operator fun set(k: A<C>, v: C) { TODO() }
-}
-
-fun foo() {
-    E()[A<MutableList<Int>>()] += 1
-}

compiler/testData/diagnostics/tests/operatorsOverloading/kt45503_3.kt

@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 // !DIAGNOSTICS: -UNUSED_PARAMETER
 // WITH_RUNTIME
 // SKIP_TXT