IR: get overridden directly from IrProperty when resolving fake override

The previous way of getting them either via getter or setter failed on
Java properties which only have a backing field. Now that IrProperty has
overriddenSymbols (after 53c1de172f), it makes sense to use it directly
instead. Use it only in SyntheticAccessorLowering though to avoid
breaking Kotlin/Native (see KT-47019).

 #KT-46900 Fixed

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

@@ -32581,6 +32581,11 @@ public class LightAnalysisModeTestGenerated extends AbstractLightAnalysisModeTes
             public void testKt46578_propertyRef() throws Exception {
                 runTest("compiler/testData/codegen/box/syntheticAccessors/protectedJavaFieldAccessor/kt46578_propertyRef.kt");
             }
+
+            @TestMetadata("kt46900_jkk_inheritance.kt")
+            public void testKt46900_jkk_inheritance() throws Exception {
+                runTest("compiler/testData/codegen/box/syntheticAccessors/protectedJavaFieldAccessor/kt46900_jkk_inheritance.kt");
+            }
         }
 
         @TestMetadata("compiler/testData/codegen/box/syntheticAccessors/protectedMemberReferenceAccessor")