Fix delegated property resolve when provideDelegate has this as argument

#KT-41135 Fixed

compiler/fir/fir2ir/tests/org/jetbrains/kotlin/codegen/ir/FirBlackBoxCodegenTestGenerated.java

@@ -9818,6 +9818,11 @@ public class FirBlackBoxCodegenTestGenerated extends AbstractFirBlackBoxCodegenT
             public void testPropertyMetadata() throws Exception {
                 runTest("compiler/testData/codegen/box/delegatedProperty/provideDelegate/propertyMetadata.kt");
             }
+
+            @TestMetadata("provideDelegateByExtensionFunction.kt")
+            public void testProvideDelegateByExtensionFunction() throws Exception {
+                runTest("compiler/testData/codegen/box/delegatedProperty/provideDelegate/provideDelegateByExtensionFunction.kt");
+            }
         }
     }
 

compiler/testData/codegen/box/delegatedProperty/provideDelegate/provideDelegateByExtensionFunction.kt

@@ -0,0 +1,31 @@
+// IGNORE_BACKEND_FIR: JVM_IR
+
+import kotlin.reflect.KProperty
+
+class TypeInference {
+    val explicitTypes by providerFun<TypeInference, String>()
+    val withoutTypes: String by providerFun()
+}
+
+class Inv<T>(val x: T)
+
+fun <T, R> T.providerFun() = object : DelegateProvider<T, R>() {
+    override fun provideDelegate(thisRef: T, property: KProperty<*>): Inv<R> {
+        return Inv("OK") as Inv<R>
+    }
+}
+
+operator fun <T> Inv<T>.getValue(thisRef: Any?, property: KProperty<*>): T = x
+
+abstract class DelegateProvider<T, R> {
+    abstract operator fun provideDelegate(
+        thisRef: T,
+        property: KProperty<*>
+    ): Inv<R>
+}
+
+fun box(): String {
+    val t = TypeInference()
+    if (t.explicitTypes != t.withoutTypes) return "fail 1"
+    return t.withoutTypes
+}

compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java

@@ -11043,6 +11043,11 @@ public class BlackBoxCodegenTestGenerated extends AbstractBlackBoxCodegenTest {
             public void testPropertyMetadata() throws Exception {
                 runTest("compiler/testData/codegen/box/delegatedProperty/provideDelegate/propertyMetadata.kt");
             }
+
+            @TestMetadata("provideDelegateByExtensionFunction.kt")
+            public void testProvideDelegateByExtensionFunction() throws Exception {
+                runTest("compiler/testData/codegen/box/delegatedProperty/provideDelegate/provideDelegateByExtensionFunction.kt");
+            }
         }
     }
 

compiler/tests/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java

@@ -11043,6 +11043,11 @@ public class LightAnalysisModeTestGenerated extends AbstractLightAnalysisModeTes
             public void testPropertyMetadata() throws Exception {
                 runTest("compiler/testData/codegen/box/delegatedProperty/provideDelegate/propertyMetadata.kt");
             }
+
+            @TestMetadata("provideDelegateByExtensionFunction.kt")
+            public void testProvideDelegateByExtensionFunction() throws Exception {
+                runTest("compiler/testData/codegen/box/delegatedProperty/provideDelegate/provideDelegateByExtensionFunction.kt");
+            }
         }
     }
 

compiler/tests/org/jetbrains/kotlin/codegen/ir/IrBlackBoxCodegenTestGenerated.java

@@ -9818,6 +9818,11 @@ public class IrBlackBoxCodegenTestGenerated extends AbstractIrBlackBoxCodegenTes
             public void testPropertyMetadata() throws Exception {
                 runTest("compiler/testData/codegen/box/delegatedProperty/provideDelegate/propertyMetadata.kt");
             }
+
+            @TestMetadata("provideDelegateByExtensionFunction.kt")
+            public void testProvideDelegateByExtensionFunction() throws Exception {
+                runTest("compiler/testData/codegen/box/delegatedProperty/provideDelegate/provideDelegateByExtensionFunction.kt");
+            }
         }
     }
 

core/descriptors/src/org/jetbrains/kotlin/types/checker/ClassicTypeSystemContext.kt

@@ -71,7 +71,7 @@ interface ClassicTypeSystemContext : TypeSystemInferenceExtensionContext, TypeSy
 
     override fun SimpleTypeMarker.isStubType(): Boolean {
         require(this is SimpleType, this::errorMessage)
-        return this is StubType
+        return this is AbstractStubType
     }
 
     override fun CapturedTypeMarker.lowerType(): KotlinTypeMarker? {

js/js.tests/test/org/jetbrains/kotlin/js/test/es6/semantics/IrJsCodegenBoxES6TestGenerated.java

@@ -8383,6 +8383,11 @@ public class IrJsCodegenBoxES6TestGenerated extends AbstractIrJsCodegenBoxES6Tes
             public void testPropertyMetadata() throws Exception {
                 runTest("compiler/testData/codegen/box/delegatedProperty/provideDelegate/propertyMetadata.kt");
             }
+
+            @TestMetadata("provideDelegateByExtensionFunction.kt")
+            public void testProvideDelegateByExtensionFunction() throws Exception {
+                runTest("compiler/testData/codegen/box/delegatedProperty/provideDelegate/provideDelegateByExtensionFunction.kt");
+            }
         }
     }
 

js/js.tests/test/org/jetbrains/kotlin/js/test/ir/semantics/IrJsCodegenBoxTestGenerated.java

@@ -8383,6 +8383,11 @@ public class IrJsCodegenBoxTestGenerated extends AbstractIrJsCodegenBoxTest {
             public void testPropertyMetadata() throws Exception {
                 runTest("compiler/testData/codegen/box/delegatedProperty/provideDelegate/propertyMetadata.kt");
             }
+
+            @TestMetadata("provideDelegateByExtensionFunction.kt")
+            public void testProvideDelegateByExtensionFunction() throws Exception {
+                runTest("compiler/testData/codegen/box/delegatedProperty/provideDelegate/provideDelegateByExtensionFunction.kt");
+            }
         }
     }
 

js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/JsCodegenBoxTestGenerated.java

@@ -8383,6 +8383,11 @@ public class JsCodegenBoxTestGenerated extends AbstractJsCodegenBoxTest {
             public void testPropertyMetadata() throws Exception {
                 runTest("compiler/testData/codegen/box/delegatedProperty/provideDelegate/propertyMetadata.kt");
             }
+
+            @TestMetadata("provideDelegateByExtensionFunction.kt")
+            public void testProvideDelegateByExtensionFunction() throws Exception {
+                runTest("compiler/testData/codegen/box/delegatedProperty/provideDelegate/provideDelegateByExtensionFunction.kt");
+            }
         }
     }