Allow variable names with length of up to 256 characters (this is required by WebGL spec).
BUG=109
TEST=the 256-character variable test in glsl-conformance.html passes

Review URL: http://codereview.appspot.com/3981050

git-svn-id: https://angleproject.googlecode.com/svn/trunk@552 736b8ea6-26fd-11df-bfd4-992fa37f6226
diff --git a/src/compiler/preprocessor/scanner.h b/src/compiler/preprocessor/scanner.h
index 0fee20d..33306e5 100644
--- a/src/compiler/preprocessor/scanner.h
+++ b/src/compiler/preprocessor/scanner.h
@@ -49,7 +49,7 @@
 #define __SCANNER_H 1
 
 // These lengths do not include the NULL terminator.
-#define MAX_SYMBOL_NAME_LEN 127
+#define MAX_SYMBOL_NAME_LEN 256
 #define MAX_STRING_LEN 511
 
 #include "compiler/preprocessor/parser.h"