Rename EOpFaceForward to EOpFaceforward.

This mirrors the spec naming and makes auto-gen a little easier.

BUG=chromium:697758

Change-Id: I9bcbc2c874b9a93a6d542aedf2b239f01ee708ce
Reviewed-on: https://chromium-review.googlesource.com/526393
Reviewed-by: Olli Etuaho <oetuaho@nvidia.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>
diff --git a/src/compiler/translator/Initialize.cpp b/src/compiler/translator/Initialize.cpp
index 718968f..f5941ea 100644
--- a/src/compiler/translator/Initialize.cpp
+++ b/src/compiler/translator/Initialize.cpp
@@ -145,7 +145,7 @@
     symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpDot, float1, genType, genType);
     symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpCross, float3, float3, float3);
     symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpNormalize, genType, genType);
-    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpFaceForward, genType, genType, genType,
+    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpFaceforward, genType, genType, genType,
                                 genType);
     symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpReflect, genType, genType, genType);
     symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpRefract, genType, genType, genType, float1);