FIR2IR KT-46578 add overridden properties generation

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

@@ -353,6 +353,33 @@ private fun FirClass<*>.getSuperTypesAsIrClasses(
     return irClass.superTypes.mapNotNull { it.classifierOrNull?.owner as? IrClass }.toSet()
 }
 
+internal fun FirProperty.generateOverriddenPropertySymbols(
+    containingClass: FirClass<*>,
+    session: FirSession,
+    scopeSession: ScopeSession,
+    declarationStorage: Fir2IrDeclarationStorage,
+    fakeOverrideGenerator: FakeOverrideGenerator,
+): List<IrPropertySymbol> {
+    val superClasses = containingClass.getSuperTypesAsIrClasses(declarationStorage) ?: return emptyList()
+
+    val scope = containingClass.unsubstitutedScope(session, scopeSession, withForcedTypeCalculator = true)
+    scope.processPropertiesByName(name) {}
+    val overriddenSet = mutableSetOf<IrPropertySymbol>()
+    scope.processOverriddenPropertiesFromSuperClasses(symbol, containingClass) {
+        if (it.fir.visibility == Visibilities.Private) {
+            return@processOverriddenPropertiesFromSuperClasses ProcessorAction.NEXT
+        }
+
+        for (overridden in fakeOverrideGenerator.getOverriddenSymbolsInSupertypes(it, superClasses)) {
+            overriddenSet += overridden
+        }
+
+        ProcessorAction.NEXT
+    }
+
+    return overriddenSet.toList()
+}
+
 internal fun FirProperty.generateOverriddenAccessorSymbols(
     containingClass: FirClass<*>,
     isGetter: Boolean,

compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/backend/generators/ClassMemberGenerator.kt

@@ -156,6 +156,11 @@ internal class ClassMemberGenerator(
         val delegate = property.delegate
         val propertyType = property.returnTypeRef.toIrType()
         irProperty.initializeBackingField(property, initializerExpression = initializer ?: delegate)
+        if (containingClass != null) {
+            irProperty.overriddenSymbols = property.generateOverriddenPropertySymbols(
+                containingClass, session, scopeSession, declarationStorage, fakeOverrideGenerator
+            )
+        }
         irProperty.getter?.setPropertyAccessorContent(
             property, property.getter, irProperty, propertyType,
             property.getter is FirDefaultPropertyGetter,

compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/backend/generators/DelegatedMemberGenerator.kt

@@ -161,6 +161,14 @@ internal class DelegatedMemberGenerator(
                 firDelegateProperty, subClass, origin = IrDeclarationOrigin.DELEGATED_MEMBER,
                 containingClass = firSubClass.symbol.toLookupTag()
             )
+        delegateProperty.overriddenSymbols =
+            firDelegateProperty.generateOverriddenPropertySymbols(
+                firSubClass,
+                session,
+                scopeSession,
+                declarationStorage,
+                fakeOverrideGenerator
+            )
         annotationGenerator.generate(delegateProperty, firDelegateProperty)
 
         delegateProperty.getter!!.body = createDelegateBody(irField, delegateProperty.getter!!, superProperty.getter!!)

compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/lazy/Fir2IrLazyProperty.kt

@@ -7,8 +7,6 @@ package org.jetbrains.kotlin.fir.lazy
 
 import org.jetbrains.kotlin.descriptors.Modality
 import org.jetbrains.kotlin.descriptors.PropertyDescriptor
-import org.jetbrains.kotlin.fir.backend.Fir2IrComponents
-import org.jetbrains.kotlin.fir.backend.toIrConst
 import org.jetbrains.kotlin.fir.declarations.*
 import org.jetbrains.kotlin.fir.declarations.impl.FirDefaultPropertyGetter
 import org.jetbrains.kotlin.fir.declarations.impl.FirDefaultPropertySetter
@@ -24,10 +22,11 @@ import org.jetbrains.kotlin.ir.util.isInterface
 import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.serialization.deserialization.descriptors.DeserializedContainerSource
 import org.jetbrains.kotlin.descriptors.DescriptorVisibility
-import org.jetbrains.kotlin.fir.backend.ConversionTypeContext
+import org.jetbrains.kotlin.fir.backend.*
 import org.jetbrains.kotlin.fir.backend.ConversionTypeOrigin
 import org.jetbrains.kotlin.fir.symbols.Fir2IrSimpleFunctionSymbol
 import org.jetbrains.kotlin.ir.symbols.IrPropertySymbol
+import org.jetbrains.kotlin.ir.symbols.IrSimpleFunctionSymbol
 
 class Fir2IrLazyProperty(
     components: Fir2IrComponents,
@@ -185,7 +184,13 @@ class Fir2IrLazyProperty(
     }
 
     override var overriddenSymbols: List<IrPropertySymbol> by lazyVar(lock) {
-        emptyList() // TODO calculate overridden symbols for property
+        fir.generateOverriddenPropertySymbols(
+            containingClass,
+            session,
+            scopeSession,
+            declarationStorage,
+            fakeOverrideGenerator
+        )
     }
 
     override var metadata: MetadataSource?