Fix bug with duplicate test names starting out at the wrong number.
Fix bug with duplicate test names starting out at the wrong number.

If two tests have the name "foo", the second should appear as "foo_2", but instead it appeared as "foo_3".

femhub/CodeMirror2,femhub/CodeMirror2,filonb/CodeMirror2,filonb/CodeMirror2,leoshine/CodeMirror,femhub/CodeMirror2,filonb/CodeMirror2,leoshine/CodeMirror