adapt testdata to inferred jdk annotations

java/java-tests/testData/codeInsight/completion/smartType/DiamondNotCollapsedInCaseOfAnonymousClasses-out.java

@@ -16,6 +16,7 @@ class MyClass {
             return super.clone();
         }
 
+        @NotNull
         @Override
         public String toString() {
             return super.toString();

java/java-tests/testData/codeInsight/completion/smartType/NewAnonymousFunction-out.java

@@ -16,6 +16,7 @@ class A {
           return super.clone();
       }
 
+      @NotNull
       @Override
       public String toString() {
           return super.toString();