Get accessors for companion object properties through wrapper class

compiler/backend/src/org/jetbrains/kotlin/codegen/ExpressionCodegen.java

@@ -1663,7 +1663,8 @@ public class ExpressionCodegen extends KtVisitor<StackValue, StackValue> impleme
             PropertyDescriptor propertyDescriptor = (PropertyDescriptor) descriptor;
 
             // `this` is represented as first parameter of function in erased inline class
-            if (contextKind() == OwnerKind.ERASED_INLINE_CLASS) {
+            if (contextKind() == OwnerKind.ERASED_INLINE_CLASS &&
+                InlineClassesUtilsKt.isInlineClass(propertyDescriptor.getContainingDeclaration())) {
                 Type underlyingRepresentationType = typeMapper.mapType(propertyDescriptor.getType());
                 return StackValue.local(0, underlyingRepresentationType);
             }

compiler/backend/src/org/jetbrains/kotlin/codegen/state/KotlinTypeMapper.java

@@ -810,13 +810,13 @@ public class KotlinTypeMapper {
                 }
             }
             else {
-                boolean isInsideInlineClass = currentOwner.isInline();
+                boolean toInlinedErasedClass = currentOwner.isInline() && !isAccessor(functionDescriptor);
 
                 boolean isStaticInvocation = (isStaticDeclaration(functionDescriptor) &&
                                               !(functionDescriptor instanceof ImportedFromObjectCallableDescriptor)) ||
                                              isStaticAccessor(functionDescriptor) ||
                                              CodegenUtilKt.isJvmStaticInObjectOrClassOrInterface(functionDescriptor) ||
-                                             isInsideInlineClass;
+                                             toInlinedErasedClass;
                 if (isStaticInvocation) {
                     invokeOpcode = INVOKESTATIC;
                     isInterfaceMember = currentIsInterface && currentOwner instanceof JavaClassDescriptor;
@@ -838,7 +838,7 @@ public class KotlinTypeMapper {
                                                     ? overriddenSpecialBuiltinFunction.getOriginal()
                                                     : functionDescriptor.getOriginal();
 
-                signature = isInsideInlineClass
+                signature = toInlinedErasedClass
                             ? mapSignatureForInlineErasedClassSkipGeneric(functionToCall)
                             : mapSignatureSkipGeneric(functionToCall);
                 returnKotlinType = functionToCall.getReturnType();
@@ -846,7 +846,7 @@ public class KotlinTypeMapper {
                 ClassDescriptor receiver = (currentIsInterface && !originalIsInterface) || currentOwner instanceof FunctionClassDescriptor
                                            ? declarationOwner
                                            : currentOwner;
-                owner = isInsideInlineClass ? mapErasedInlineClass(receiver) : mapClass(receiver);
+                owner = toInlinedErasedClass ? mapErasedInlineClass(receiver) : mapClass(receiver);
                 thisClass = owner;
                 dispatchReceiverKotlinType = receiver.getDefaultType();
             }

compiler/testData/codegen/box/inlineClasses/referToPropertyInCompanionObjectOfInlineClass.kt

@@ -0,0 +1,23 @@
+// !LANGUAGE: +InlineClasses
+
+inline class Foo(val c: Char) {
+    companion object {
+        val prop = "O"
+        const val constVal = 1
+        fun funInCompanion(): String = "K"
+    }
+
+    fun simple() {
+        prop
+        constVal
+        funInCompanion()
+    }
+
+    fun asResult(): String = prop + constVal + funInCompanion() + c
+}
+
+fun box(): String {
+    val r = Foo('2')
+    if (r.asResult() != "O1K2") return "fail"
+    return "OK"
+}

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

@@ -10341,6 +10341,12 @@ public class IrBlackBoxCodegenTestGenerated extends AbstractIrBlackBoxCodegenTes
             doTest(fileName);
         }
 
+        @TestMetadata("referToPropertyInCompanionObjectOfInlineClass.kt")
+        public void testReferToPropertyInCompanionObjectOfInlineClass() throws Exception {
+            String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/inlineClasses/referToPropertyInCompanionObjectOfInlineClass.kt");
+            doTest(fileName);
+        }
+
         @TestMetadata("useInlineFunctionInsideInlineClass.kt")
         public void testUseInlineFunctionInsideInlineClass() throws Exception {
             String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/inlineClasses/useInlineFunctionInsideInlineClass.kt");

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

@@ -10341,6 +10341,12 @@ public class BlackBoxCodegenTestGenerated extends AbstractBlackBoxCodegenTest {
             doTest(fileName);
         }
 
+        @TestMetadata("referToPropertyInCompanionObjectOfInlineClass.kt")
+        public void testReferToPropertyInCompanionObjectOfInlineClass() throws Exception {
+            String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/inlineClasses/referToPropertyInCompanionObjectOfInlineClass.kt");
+            doTest(fileName);
+        }
+
         @TestMetadata("useInlineFunctionInsideInlineClass.kt")
         public void testUseInlineFunctionInsideInlineClass() throws Exception {
             String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/inlineClasses/useInlineFunctionInsideInlineClass.kt");

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

@@ -10341,6 +10341,12 @@ public class LightAnalysisModeTestGenerated extends AbstractLightAnalysisModeTes
             doTest(fileName);
         }
 
+        @TestMetadata("referToPropertyInCompanionObjectOfInlineClass.kt")
+        public void testReferToPropertyInCompanionObjectOfInlineClass() throws Exception {
+            String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/inlineClasses/referToPropertyInCompanionObjectOfInlineClass.kt");
+            doTest(fileName);
+        }
+
         @TestMetadata("useInlineFunctionInsideInlineClass.kt")
         public void testUseInlineFunctionInsideInlineClass() throws Exception {
             String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/inlineClasses/useInlineFunctionInsideInlineClass.kt");

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

@@ -11301,6 +11301,12 @@ public class JsCodegenBoxTestGenerated extends AbstractJsCodegenBoxTest {
             doTest(fileName);
         }
 
+        @TestMetadata("referToPropertyInCompanionObjectOfInlineClass.kt")
+        public void testReferToPropertyInCompanionObjectOfInlineClass() throws Exception {
+            String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/inlineClasses/referToPropertyInCompanionObjectOfInlineClass.kt");
+            doTest(fileName);
+        }
+
         @TestMetadata("useInlineFunctionInsideInlineClass.kt")
         public void testUseInlineFunctionInsideInlineClass() throws Exception {
             String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/inlineClasses/useInlineFunctionInsideInlineClass.kt");