Implement support for the binary operator '%' in the translator.

BUG=angle:854

Change-Id: If116de132dc83d93255749b54c1919a75abcb65c
Reviewed-on: https://chromium-review.googlesource.com/236330
Tested-by: Gregoire Payen de La Garanderie <Gregory.Payen@imgtec.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
diff --git a/src/compiler/translator/intermOut.cpp b/src/compiler/translator/intermOut.cpp
index ba885d5..41c11cf 100644
--- a/src/compiler/translator/intermOut.cpp
+++ b/src/compiler/translator/intermOut.cpp
@@ -131,6 +131,9 @@
       case EOpDivAssign:
         out << "divide second child into first child";
         break;
+      case EOpModAssign:
+        out << "modulo second child into first child";
+        break;
       case EOpIndexDirect:
         out << "direct index";
         break;
@@ -159,6 +162,9 @@
       case EOpDiv:
         out << "divide";
         break;
+      case EOpMod:
+        out << "modulo";
+        break;
       case EOpEqual:
         out << "Compare Equal";
         break;