Setup overridability rules for properties built on Java fields

- They overrides each other
- They do not overrides Kotlin propeties and vice versa

compiler/testData/diagnostics/tests/j+k/fieldOverridesField.kt

@@ -0,0 +1,17 @@
+// FILE: A.java
+
+public class A {
+    public int size = 1;
+}
+
+// FILE: B.java
+
+public class B implements A {
+    public int size = 1;
+}
+
+// FILE: main.kt
+
+fun foo() {
+    B().size
+}