Test gardening: skip some failing tests on not-X86.


Source/JavaScriptCore: 
* tests/mozilla/mozilla-tests.yaml:

LayoutTests: 
* js/script-tests/function-apply-many-args.js:



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@169102 268f45cc-cd09-0410-ab3c-d52691b4dbfc