[FIR] Correctly detect super type in delegated constructor call

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

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 open class A(val x: String) {
     constructor(`in`: String, y: String) : this(`in` + y)
 

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

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 class B : A()
 
 sealed class A() {

compiler/testData/codegen/box/closures/captureInSuperConstructorCall/outerCapturedInLambdaInSecondaryConstructor.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 open class Base(val callback: () -> String)
 
 class Outer {

compiler/testData/codegen/box/inlineClasses/hiddenConstructor/delegatingSuperConstructorCallInSecondaryConstructor.kt

@@ -1,5 +1,4 @@
 // !LANGUAGE: +InlineClasses
-// IGNORE_BACKEND_FIR: JVM_IR
 
 inline class S(val string: String)
 

compiler/testData/codegen/box/secondaryConstructors/clashingDefaultConstructors.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 open class A(val x: String = "abc", val y: String = "efg") {
     constructor(x: String, y: String, z: Int): this(x, y + "#" + z.toString())
     

compiler/testData/codegen/box/secondaryConstructors/delegateWithComplexExpression.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 var log = ""
 
 open class Base(val s: String)

compiler/testData/codegen/box/secondaryConstructors/generics.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 internal open class B<T>(val x: T, val y: T) {
     constructor(x: T): this(x, x)
     override fun toString() = "$x#$y"

compiler/testData/codegen/box/secondaryConstructors/localClasses.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 open class C(val grandParentProp: String)
 fun box(): String {
     var sideEffects: String = ""

compiler/testData/codegen/box/secondaryConstructors/superCallSecondary.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 var sideEffects: String = ""
 
 internal abstract class B {

compiler/testData/codegen/box/specialBuiltins/exceptionCause.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 class CustomException : Throwable {
     constructor(message: String?, cause: Throwable?) : super(message, cause)
 

compiler/testData/codegen/box/specialBuiltins/throwableImplWithSecondaryConstructor.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 class MyThrowable : Throwable {
     val x: String