Lexer does not need to handle unknown-char case.

It is handled by the preprocessor. Added an assert.

TEST=WebGL conformance tests.
TBR=kbr@chromium.org

Review URL: https://codereview.appspot.com/8653052

git-svn-id: http://angleproject.googlecode.com/svn/trunk@2194 736b8ea6-26fd-11df-bfd4-992fa37f6226
2 files changed