Update ANGLE's translator to Bison 3.

BUG=angle:462

Change-Id: I2c1c18027dee1c3b4efb87374caaadbf58367841
Reviewed-on: https://chromium-review.googlesource.com/236930
Tested-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Kenneth Russell <kbr@chromium.org>
Reviewed-by: Zhenyao Mo <zmo@chromium.org>
diff --git a/src/compiler/preprocessor/ExpressionParser.y b/src/compiler/preprocessor/ExpressionParser.y
index 662a31b..ea638ec 100644
--- a/src/compiler/preprocessor/ExpressionParser.y
+++ b/src/compiler/preprocessor/ExpressionParser.y
@@ -69,7 +69,7 @@
 %}
 
 %pure-parser
-%name-prefix="pp"
+%name-prefix "pp"
 %parse-param {Context *context}
 %lex-param {Context *context}