Make HTypeofIsAndBranch accept any representation input

src/hydrogen-instructions.cc

Index: src/hydrogen-instructions.cc
diff --git a/src/hydrogen-instructions.cc b/src/hydrogen-instructions.cc
index 206ab7e2accf5e496b6cd814eb1071c511cb21e7..100af0a0d18439d83c43951276ad8d33c52c4ec4 100644
--- a/src/hydrogen-instructions.cc
+++ b/src/hydrogen-instructions.cc
@@ -1316,6 +1316,20 @@ HValue* HWrapReceiver::Canonicalize() {
 }
 
 
+HValue* HTypeofIsAndBranch::Canonicalize() {
+  if (value()->representation().IsSpecialization()) {
+    AllowHandleDereference allow_deref;

[Jakob Kummerow, 2013/11/05 14:42:49]

No way!

If you absolutely need this information during optimization phases, set a bit at
HInstruction construction time.

[Weiliang, 2013/11/07 11:53:30]

Done.

+    if (type_literal()->Equals(isolate()->heap()->number_string())) {
+      state_ = kAlwaysTrue;
+    } else {
+      state_ = kAlwaysFalse;
+    }
+  }
+
+  return this;
+}
+
+
 void HTypeof::PrintDataTo(StringStream* stream) {
   value()->PrintNameTo(stream);
 }