allow to implement and override default methods in java 8 (IDEA-103180) [roma]

(cherry picked from commit 6fc2a889a092365431b92d7f03b8d2057a82d8be)

java/java-tests/testData/codeInsight/overrideImplement/afterOverrideExtensionMethods.java

@@ -0,0 +1,39 @@
+interface A<T> {
+    default void m(T t) { }
+}
+
+class MyClass<T> implements A<T> {
+    @Override
+    public void m(T t) {
+        <selection>//To change body of implemented methods use File | Settings | File Templates.</selection>
+    }
+
+    public MyClass() {
+        super();    //To change body of overridden methods use File | Settings | File Templates.
+    }
+
+    @Override
+    public int hashCode() {
+        return super.hashCode();    //To change body of overridden methods use File | Settings | File Templates.
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        return super.equals(obj);    //To change body of overridden methods use File | Settings | File Templates.
+    }
+
+    @Override
+    protected Object clone() throws CloneNotSupportedException {
+        return super.clone();    //To change body of overridden methods use File | Settings | File Templates.
+    }
+
+    @Override
+    public String toString() {
+        return super.toString();    //To change body of overridden methods use File | Settings | File Templates.
+    }
+
+    @Override
+    protected void finalize() throws Throwable {
+        super.finalize();    //To change body of overridden methods use File | Settings | File Templates.
+    }
+}