FIR: set anonymous initializers' parents

compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/backend/Fir2IrVisitor.kt

@@ -411,6 +411,7 @@ class Fir2IrVisitor(
             symbolTable.declareAnonymousInitializer(
                 startOffset, endOffset, origin, parent.descriptor
             ).apply {
+                setParentByParentStack()
                 declarationStorage.enterScope(descriptor)
                 body = anonymousInitializer.body!!.convertToIrBlockBody()
                 declarationStorage.leaveScope(descriptor)

compiler/testData/codegen/box/assert/jvm/noUnnecessaryClassInitialization.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 // TARGET_BACKEND: JVM
 // KOTLIN_CONFIGURATION_FLAGS: ASSERTIONS_MODE=jvm
 // WITH_RUNTIME

compiler/testData/codegen/box/classes/classObjectAsStaticInitializer.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 // IGNORE_BACKEND: NATIVE
 // IGNORE_BACKEND: JS_IR
 var global = 0;

compiler/testData/codegen/box/classes/initializerBlock.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 class C() {
   public var f: Int
 

compiler/testData/codegen/box/classes/kt501.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 class Reluctant() {
      init {
         throw Exception("I'm not coming out")

compiler/testData/codegen/box/defaultArguments/callDefaultFromInitializer.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 fun foo(x: Int = 42) = x
 
 class C {

compiler/testData/codegen/box/statics/anonymousInitializerIObject.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 object Foo {
     val bar: String