- Added custom Diagnostics class. Routed all info-log messages via this new class.
- Added custom DirectiveHandler class. Moved directive-handling code to this class and routed the old path.
- Deleted lexer_glue because it is not needed anymore. The new preprocessor is almost ready!
- Killed a bunch of dead code related to PragmaTable.
Review URL: https://codereview.appspot.com/6308074

git-svn-id: https://angleproject.googlecode.com/svn/trunk@1150 736b8ea6-26fd-11df-bfd4-992fa37f6226