Rename operator enums so they can be autogenerated

Camel casing is removed from the enums where it differs from the GLSL
spec. This way it's easier to autogenerate code for built-in
functions mapped to operators.

BUG=angleproject:2267
TEST=angle_unittests

Change-Id: I2490d5d0e8ffb45eba343f225f76779e63381a65
Reviewed-on: https://chromium-review.googlesource.com/929361
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
diff --git a/src/compiler/translator/SymbolTable.cpp b/src/compiler/translator/SymbolTable.cpp
index 7f1273a..540d695 100644
--- a/src/compiler/translator/SymbolTable.cpp
+++ b/src/compiler/translator/SymbolTable.cpp
@@ -893,7 +893,7 @@
     insertBuiltInOp(COMMON_BUILTINS, EOpExp2, genType, genType);
     insertBuiltInOp(COMMON_BUILTINS, EOpLog2, genType, genType);
     insertBuiltInOp(COMMON_BUILTINS, EOpSqrt, genType, genType);
-    insertBuiltInOp(COMMON_BUILTINS, EOpInverseSqrt, genType, genType);
+    insertBuiltInOp(COMMON_BUILTINS, EOpInversesqrt, genType, genType);
 
     //
     // Common Functions.
@@ -933,16 +933,16 @@
     insertBuiltInOp(ESSL3_BUILTINS, EOpMix, genType, genType, genType, genBType);
     insertBuiltInOp(COMMON_BUILTINS, EOpStep, genType, genType, genType);
     insertBuiltInOp(COMMON_BUILTINS, EOpStep, genType, float1, genType);
-    insertBuiltInOp(COMMON_BUILTINS, EOpSmoothStep, genType, genType, genType, genType);
-    insertBuiltInOp(COMMON_BUILTINS, EOpSmoothStep, genType, float1, float1, genType);
+    insertBuiltInOp(COMMON_BUILTINS, EOpSmoothstep, genType, genType, genType, genType);
+    insertBuiltInOp(COMMON_BUILTINS, EOpSmoothstep, genType, float1, float1, genType);
 
     const TType *outGenType  = StaticType::GetQualified<EbtGenType, EvqOut>();
     const TType *outGenIType = StaticType::GetQualified<EbtGenIType, EvqOut>();
 
     insertBuiltInOp(ESSL3_BUILTINS, EOpModf, genType, genType, outGenType);
 
-    insertBuiltInOp(ESSL3_BUILTINS, EOpIsNan, genBType, genType);
-    insertBuiltInOp(ESSL3_BUILTINS, EOpIsInf, genBType, genType);
+    insertBuiltInOp(ESSL3_BUILTINS, EOpIsnan, genBType, genType);
+    insertBuiltInOp(ESSL3_BUILTINS, EOpIsinf, genBType, genType);
     insertBuiltInOp(ESSL3_BUILTINS, EOpFloatBitsToInt, genIType, genType);
     insertBuiltInOp(ESSL3_BUILTINS, EOpFloatBitsToUint, genUType, genType);
     insertBuiltInOp(ESSL3_BUILTINS, EOpIntBitsToFloat, genType, genIType);