[FIR] Don't remove subsumed members from intersection overrides's overriddens

This fixes a bunch of missing overridden symbols in IR.
This is also required for fixing KT-59921 in the following commit
where we need to keep all overridden symbols of intersection overrides
so that we can enhance them properly.

#KT-57300 Fixed
#KT-57299 Fixed
#KT-59921
#KT-57300
#KT-62788
#KT-64271
#KT-64382

compiler/testData/codegen/bytecodeListing/collectionStubs/extendingAbstractCollection.kt

@@ -1,6 +1,3 @@
-// IGNORE_BACKEND_K2: JVM_IR
-// FIR status: KT-57299 K2: VerifyError due to overriding final method `size` on a subclass of Collection and Set
-
 abstract class AC<X> : Collection<X>
 
 abstract class ASet<T> : AC<T>(), Set<T>

compiler/testData/codegen/bytecodeListing/collectionStubs/inheritingFromAbstractCollections.kt

@@ -1,8 +1,5 @@
 // WITH_STDLIB
 
-// IGNORE_BACKEND_K2: JVM_IR
-// FIR status: KT-57300 K2: subclass of MutableCollection with primitive element type has methods with boxed type
-
 abstract class AIterD : AbstractIterator<Double>()
 
 abstract class ACollD : AbstractCollection<Double>()

compiler/testData/codegen/bytecodeListing/collectionStubs/inheritingFromAbstractMap.kt

@@ -1,9 +1,5 @@
 // WITH_STDLIB
 
-// IGNORE_BACKEND_K2: JVM_IR
-// FIR status: KT-57300 K2: subclass of MutableCollection with primitive element type has methods with boxed type
-//      (`containsValue(Ljava/lang/Double;)Z` instead of `containsValue(D)Z`)
-
 abstract class AMapSD : AbstractMap<String, Double>()
 
 abstract class AMMapSD : AbstractMutableMap<String, Double>()

compiler/testData/codegen/bytecodeListing/collectionStubs/inheritingFromAbstractMutableList.kt

@@ -1,8 +1,5 @@
 // WITH_STDLIB
 
-// IGNORE_BACKEND_K2: JVM_IR
-// FIR status: KT-57300 K2: subclass of MutableCollection with primitive element type has methods with boxed type
-
 abstract class AMListD : AbstractMutableList<Double>()
 
 abstract class AMListI : AbstractMutableList<Int>()