Origin: https://bugs.webkit.org/show_bug.cgi?id=119798
Subversion Revision: 154045
--- a/Source/ThirdParty/ANGLE/src/compiler/glslang.y
+++ b/Source/ThirdParty/ANGLE/src/compiler/glslang.y
@@ -47,6 +47,7 @@
 %expect 1 /* One shift reduce conflict because of if | else */
 %pure-parser
 %parse-param {TParseContext* context}
+%lex-param {YYLEX_PARAM}
 
 %union {
     struct {
