Added support for GL_ARB_texture_rectangle to shader validator.

Parser was regenerated with the flex/bison shipped with Ubuntu 10.04.

BUG=251
TEST=tested with new Core Animation plugin rendering path on Mac OS X
Review URL: http://codereview.appspot.com/5432044

git-svn-id: https://angleproject.googlecode.com/svn/trunk@888 736b8ea6-26fd-11df-bfd4-992fa37f6226
diff --git a/src/compiler/ShaderLang.cpp b/src/compiler/ShaderLang.cpp
index 4c66743..13f11b5 100644
--- a/src/compiler/ShaderLang.cpp
+++ b/src/compiler/ShaderLang.cpp
@@ -122,6 +122,7 @@
     // Extensions.
     resources->OES_standard_derivatives = 0;
     resources->OES_EGL_image_external = 0;
+    resources->ARB_texture_rectangle = 0;
 }
 
 //