Add support for Token::NE and Token::NE_STRICT to TokenToCondition.

src/x64/lithium-codegen-x64.cc

Index: src/x64/lithium-codegen-x64.cc
diff --git a/src/x64/lithium-codegen-x64.cc b/src/x64/lithium-codegen-x64.cc
index b95ac3a25232974e96b03763a452e75356d1c54b..6fe64c553ec39222eb7741696892cc436b5d5799 100644
--- a/src/x64/lithium-codegen-x64.cc
+++ b/src/x64/lithium-codegen-x64.cc
@@ -2048,6 +2048,10 @@ inline Condition LCodeGen::TokenToCondition(Token::Value op, bool is_unsigned) {
     case Token::EQ_STRICT:
       cond = equal;
       break;
+    case Token::NE:
+    case Token::NE_STRICT:
+      cond = not_equal;
+      break;
     case Token::LT:
       cond = is_unsigned ? below : less;
       break;