Prevent duplicate use statements when optimizing Parser's source
Build scripts: remove unusued files from the PHP 5.3 branch
Synced to 16968c48bf4efc2a3a4f692999ee906786da2f18
Synced to 16968c48bf4efc2a3a4f692999ee906786da2f18
Synced to 16968c48bf4efc2a3a4f692999ee906786da2f18
Synced to 16968c48bf4efc2a3a4f692999ee906786da2f18