[FIR] Support captured type arguments of anonymous objects in resolve

compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/ScopeUtils.kt

@@ -78,8 +78,8 @@ fun FirRegularClass.defaultType(): ConeClassLikeTypeImpl {
     )
 }
 
-fun FirAnonymousObject.defaultType(): ConeClassLikeTypeImpl {
-    return ConeClassLikeTypeImpl(
+fun FirAnonymousObject.defaultType(): ConeClassLikeType {
+    return this.typeRef.coneTypeSafe() ?: ConeClassLikeTypeImpl(
         symbol.toLookupTag(),
         emptyArray(),
         isNullable = false

compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/transformers/body/resolve/FirDeclarationsResolveTransformer.kt

@@ -369,9 +369,11 @@ class FirDeclarationsResolveTransformer(transformer: FirBodyResolveTransformer)
         }
         dataFlowAnalyzer.enterClass()
         val type = anonymousObject.defaultType()
-        anonymousObject.resultType = buildResolvedTypeRef {
-            source = anonymousObject.source
-            this.type = type
+        if (anonymousObject.typeRef !is FirResolvedTypeRef) {
+            anonymousObject.resultType = buildResolvedTypeRef {
+                source = anonymousObject.source
+                this.type = type
+            }
         }
         var result = withLabelAndReceiverType(null, anonymousObject, type) {
             transformDeclarationContent(anonymousObject, data).single as FirAnonymousObject

compiler/fir/resolve/src/org/jetbrains/kotlin/fir/types/ConeTypeContext.kt

@@ -200,11 +200,11 @@ interface ConeTypeContext : TypeSystemContext, TypeSystemOptimizationContext, Ty
         //require(this is ConeSymbol)
         return when (this) {
             is FirTypeParameterSymbol,
-            is FirAnonymousObjectSymbol,
             is ConeCapturedTypeConstructor,
             is ErrorTypeConstructor,
             is ConeTypeVariableTypeConstructor,
             is ConeIntersectionType -> 0
+            is FirAnonymousObjectSymbol -> fir.typeParameters.size
             is FirRegularClassSymbol -> fir.typeParameters.size
             is FirTypeAliasSymbol -> fir.typeParameters.size
             is ConeIntegerLiteralType -> 0
@@ -216,6 +216,7 @@ interface ConeTypeContext : TypeSystemContext, TypeSystemOptimizationContext, Ty
         //require(this is ConeSymbol)
         return when (this) {
             is FirTypeParameterSymbol -> error("?!:11")
+            is FirAnonymousObjectSymbol -> fir.typeParameters[index].symbol
             is FirRegularClassSymbol -> fir.typeParameters[index].symbol
             is FirTypeAliasSymbol -> fir.typeParameters[index].symbol
             else -> error("?!:12")