generate equals/hashCode: ensure one @Override is inserted; extensions could also provide their annotations on equals/hashCode override;

tests: language level is 1.5 though jdk is mockJdk14 without @Override as expected -> fqns in test data

java/java-tests/testData/codeInsight/generateEquals/afterLocalLangClass.java

@@ -3,7 +3,7 @@ class Test {
     class Integer {
         int i;
 
-        @Override
+        @java.lang.Override
         public boolean equals(Object o) {
             if (this == o) return true;
             if (o == null || getClass() != o.getClass()) return false;
@@ -15,7 +15,7 @@ class Test {
             return true;
         }
 
-        @Override
+        @java.lang.Override
         public int hashCode() {
             return i;
         }