Bug 473236, 2013 edition: Remove executable bit from files that clearly don't need it (html, xhtml, xul, svg, png, jpg, ttf files in test dirs within /layout). DONTBUILD
back out cb015c10d58f (bug 828508) on a CLOSED TREE for turning bc tests orange
Bug 846945 - Downloaded / saved files should be searchable from the Metro Search charm. r=jimm.
Bug 846933 - Comment class TokenStream.  r=nnethercote.

--HG--
extra : rebase_source : ab0549c7e56e85fa43a3d714f68050ffb7a65e83
Bug 854137 - Don't hold pointers to yield nodes in the parse tree.  r=jorendorff.

--HG--
extra : rebase_source : 43261a7168c47f4bdaadcb2747017fec63b8937d