foo(num) {
            counter += num;
          }
Tests the various configuration options that affect the hintingEnabled method.

       | configuration | test1 | test2 | test3 | test4 | test5 |
       | ------------- | ----- | ----- | ----- | ----- | ----- |
       | hinting       | true  | true  | true  | false | unset |
       | environment   | dev   | N/A   | prod  | N\A   | N\A   |
       | test_command  | set   | set   | unset | set   | set   |
       | RESULT        | true  | true  | false | false | true  |

        @method hintingEnabled