[KAPT] Correct type for property with accessor

^KT-39060 Fixed

plugins/kapt3/kapt3-compiler/src/org/jetbrains/kotlin/kapt3/stubs/ClassFileToSourceStubConverter.kt

@@ -1023,10 +1023,10 @@ class ClassFileToSourceStubConverter(val kaptContext: KaptContextForStubGenerati
         val returnType = getNonErrorType(
             descriptor.returnType, RETURN_TYPE,
             ktTypeProvider = {
-                val element = kaptContext.origins[method]?.element
+                when (val element = kaptContext.origins[method]?.element) {
-                when (element) {
                     is KtFunction -> element.typeReference
                     is KtProperty -> if (descriptor is PropertyGetterDescriptor) element.typeReference else null
+                    is KtPropertyAccessor -> if (descriptor is PropertyGetterDescriptor) element.property.typeReference else null
                     is KtParameter -> if (descriptor is PropertyGetterDescriptor) element.typeReference else null
                     else -> null
                 }

plugins/kapt3/kapt3-compiler/testData/converter/nonExistentClass.kt

@@ -9,6 +9,8 @@ object NonExistentType {
     val c: (ABCDEF) -> Unit = { f -> }
     val d: ABCDEF<String, (List<ABCDEF>) -> Unit>? = null
     
+    val foo: Foo get() = Foo()
+
     fun a(a: ABCDEF, s: String): ABCDEF {}
     fun b(s: String): ABCDEF {}
 }

plugins/kapt3/kapt3-compiler/testData/converter/nonExistentClass.txt

@@ -38,6 +38,11 @@ public final class NonExistentType {
         return null;
     }
 
+    @org.jetbrains.annotations.NotNull()
+    public final Foo getFoo() {
+        return null;
+    }
+
     @org.jetbrains.annotations.NotNull()
     public final ABCDEF a(@org.jetbrains.annotations.NotNull()
     ABCDEF a, @org.jetbrains.annotations.NotNull()