[i2078] Add possibility to generate assert on @NonNull

test/transform/resource/after-ecj/NonNullWithSneakyThrows.java

@@ -7,7 +7,7 @@ class NonNullWithSneakyThrows {
       {
         if ((in == null))
             {
-              throw new java.lang.NullPointerException("in is marked @NonNull but is null");
+              throw new java.lang.NullPointerException("in is marked non-null but is null");
             }
         System.out.println(in);
       }