Reporting ACCIDENTAL_OVERRIDE on jvm signatures that have no descriptors

(marking them SYNTHETIC)

compiler/testData/codegen/boxAgainstJava/property/referenceToJavaFieldViaBridge.kt

@@ -0,0 +1,13 @@
+
+import test.referenceToJavaFieldViaBridge
+
+class A : referenceToJavaFieldViaBridge() {
+
+    fun a(): String {
+        return {field!!}()
+    }
+}
+
+fun box(): String {
+    return A().a()
+}