max-file-count in preference setting takes less files to be processed for hints

[jodyzhang]

1.open folder brackets/src/extensions/default/JavaScriptCodeHints/unittest-files/non-module-test-files into brackets
2.open .jscodehints, set max-file-count=4, reload brackets
3.check code hint for app.js: app.
->there are two hints:a,d, so it means it only finds a from a/a.js(since d is from the same line).
you can try max-file-count=2(so no hint).

Expect:
more hints(so more files less <4 should be processed) in this case.

[njx]

To @dloverin for prioritization and assignment.

[redmunds]

Was assigned to tern team, so marking "Needs Review".

[pthiess]

@dangoor for investigation.