IR: remove isFromJava check from isOverridableMemberOrAccessor

This is needed because in case a static member is inherited via a Kotlin
class (class C in the newly added test), its origin becomes
FAKE_OVERRIDE which is technically not Java anymore. After this change,
we'll build fake overrides for static members from superclasses
regardless of whether they come from Java or Kotlin.

Also, move the previous logic of
isOverridableFunction/isOverridableProperty to the only call site at
IdSignatureFactory.

 #KT-65589 Fixed

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/overrides/FakeOverrideBuilderStrategy.kt

@@ -5,13 +5,15 @@
 
 package org.jetbrains.kotlin.ir.overrides
 
-import org.jetbrains.kotlin.builtins.StandardNames
 import org.jetbrains.kotlin.descriptors.DescriptorVisibilities
 import org.jetbrains.kotlin.descriptors.ModuleDescriptor
 import org.jetbrains.kotlin.ir.declarations.*
 import org.jetbrains.kotlin.ir.symbols.IrClassSymbol
 import org.jetbrains.kotlin.ir.symbols.IrTypeParameterSymbol
-import org.jetbrains.kotlin.ir.types.*
+import org.jetbrains.kotlin.ir.types.IrSimpleType
+import org.jetbrains.kotlin.ir.types.IrType
+import org.jetbrains.kotlin.ir.types.IrTypeProjection
+import org.jetbrains.kotlin.ir.types.extractTypeParameters
 import org.jetbrains.kotlin.ir.util.getPackageFragment
 import org.jetbrains.kotlin.ir.util.hasAnnotation
 import org.jetbrains.kotlin.ir.util.render
@@ -39,7 +41,7 @@ abstract class FakeOverrideBuilderStrategy(
      * if no fake override should be created for this member
      */
     fun fakeOverrideMember(superType: IrType, member: IrOverridableMember, clazz: IrClass): IrOverridableMember? {
-        return if (member.isOverridableMemberOrAccessor() && isVisibleForOverrideInClass(member, clazz))
+        return if (isVisibleForOverrideInClass(member, clazz))
             buildFakeOverrideMember(superType, member, clazz, unimplementedOverridesStrategy)
         else
             null

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/overrides/IrFakeOverrideBuilder.kt

@@ -13,7 +13,10 @@ import org.jetbrains.kotlin.ir.symbols.IrPropertySymbol
 import org.jetbrains.kotlin.ir.symbols.IrSimpleFunctionSymbol
 import org.jetbrains.kotlin.ir.symbols.IrSymbol
 import org.jetbrains.kotlin.ir.types.*
-import org.jetbrains.kotlin.ir.util.*
+import org.jetbrains.kotlin.ir.util.collectAndFilterRealOverrides
+import org.jetbrains.kotlin.ir.util.fileOrNull
+import org.jetbrains.kotlin.ir.util.isClass
+import org.jetbrains.kotlin.ir.util.render
 import org.jetbrains.kotlin.resolve.OverridingUtil.OverrideCompatibilityInfo
 import org.jetbrains.kotlin.types.AbstractTypeChecker
 import org.jetbrains.kotlin.types.TypeCheckerState
@@ -204,7 +207,7 @@ class IrFakeOverrideBuilder(
 
         // because of binary incompatible changes, it's possible to have private member colliding with fake override
         // In that case we shouldn't generate fake override, but also shouldn't mark them as overridden
-        if (fromCurrent.isOverridableMemberOrAccessor()) {
+        if (!DescriptorVisibilities.isPrivate(fromCurrent.visibility)) {
             fromCurrent.overriddenSymbols = overridden.memoryOptimizedMap { it.original.symbol }
         }
 
@@ -527,15 +530,3 @@ private val IrOverridableMember.returnType: IrType
         is IrProperty -> getter!!.returnType
         else -> error("Unexpected type of declaration: ${this::class.java}, $this")
     }
-
-fun IrSimpleFunction.isOverridableFunction(): Boolean =
-    !DescriptorVisibilities.isPrivate(visibility) && (hasDispatchReceiver || isFromJava())
-
-fun IrProperty.isOverridableProperty(): Boolean =
-    !DescriptorVisibilities.isPrivate(visibility) && (getter.hasDispatchReceiver || setter.hasDispatchReceiver || isFromJava())
-
-fun IrDeclaration.isOverridableMemberOrAccessor(): Boolean = when (this) {
-    is IrSimpleFunction -> isOverridableFunction()
-    is IrProperty -> isOverridableProperty()
-    else -> false
-}

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/overrides/IrOverrideChecker.kt

@@ -191,9 +191,6 @@ class IrOverrideChecker(
 private val IrSimpleFunction?.hasExtensionReceiver: Boolean
     get() = this?.extensionReceiverParameter != null
 
-internal val IrSimpleFunction?.hasDispatchReceiver: Boolean
-    get() = this?.dispatchReceiverParameter != null
-
 private val IrSimpleFunction.compiledValueParameters: List<IrValueParameter>
     get() = ArrayList<IrValueParameter>(valueParameters.size + 1).apply {
         extensionReceiverParameter?.let(::add)

compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/signature/IdSignatureFactory.kt

@@ -11,13 +11,8 @@ import org.jetbrains.kotlin.descriptors.ClassKind
 import org.jetbrains.kotlin.descriptors.DescriptorVisibilities
 import org.jetbrains.kotlin.ir.IrElement
 import org.jetbrains.kotlin.ir.declarations.*
-import org.jetbrains.kotlin.ir.overrides.isOverridableFunction
-import org.jetbrains.kotlin.ir.overrides.isOverridableProperty
 import org.jetbrains.kotlin.ir.symbols.IrFileSymbol
-import org.jetbrains.kotlin.ir.util.IdSignature
-import org.jetbrains.kotlin.ir.util.KotlinMangler
-import org.jetbrains.kotlin.ir.util.isFacadeClass
-import org.jetbrains.kotlin.ir.util.render
+import org.jetbrains.kotlin.ir.util.*
 import org.jetbrains.kotlin.ir.visitors.IrElementVisitorVoid
 import org.jetbrains.kotlin.ir.visitors.acceptVoid
 
@@ -277,4 +272,13 @@ class IdSignatureFactory(
             }
         }
     }
+
+    private fun IrSimpleFunction.isOverridableFunction(): Boolean =
+        !DescriptorVisibilities.isPrivate(visibility) && (hasDispatchReceiver || isFromJava())
+
+    private fun IrProperty.isOverridableProperty(): Boolean =
+        !DescriptorVisibilities.isPrivate(visibility) && (getter.hasDispatchReceiver || setter.hasDispatchReceiver || isFromJava())
+
+    private val IrSimpleFunction?.hasDispatchReceiver: Boolean
+        get() = this?.dispatchReceiverParameter != null
 }