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/afterArraysClass.java

@@ -1,7 +1,7 @@
 class Arrays {
   int[] i;
 
-    @Override
+    @java.lang.Override
     public boolean equals(Object o) {
         if (this == o) return true;
         if (o == null || getClass() != o.getClass()) return false;
@@ -13,7 +13,7 @@ class Arrays {
         return true;
     }
 
-    @Override
+    @java.lang.Override
     public int hashCode() {
         return i != null ? i.hashCode() : 0;
     }