Revert "Calls to HCheckFunction can be eliminated if the value is an HConstant"

This reverts commit 3f96122cc572f7a0b638c30f65328c3cb3666795.

BUG=
R=danno@chromium.org

Review URL: https://codereview.chromium.org/18998003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15590 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/hydrogen-instructions.cc

@@ -1690,14 +1690,6 @@ void HCheckFunction::PrintDataTo(StringStream* stream) {
 }
 
 
-HValue* HCheckFunction::Canonicalize() {
-  return (value()->IsConstant() &&
-          HConstant::cast(value())->UniqueValueIdsMatch(target_unique_id_))
-      ? NULL
-      : this;
-}
-
-
 const char* HCheckInstanceType::GetCheckName() {
   switch (check_) {
     case IS_SPEC_OBJECT: return "object";

src/hydrogen-instructions.h

@@ -2836,8 +2836,6 @@ class HCheckFunction: public HUnaryOperation {
   virtual void PrintDataTo(StringStream* stream);
   virtual HType CalculateInferredType();
 
-  virtual HValue* Canonicalize();
-
 #ifdef DEBUG
   virtual void Verify();
 #endif
@@ -3411,11 +3409,6 @@ class HConstant: public HTemplateInstruction<0> {
     }
   }
 
-  bool UniqueValueIdsMatch(UniqueValueId other) {
-    if (!has_double_value_) return unique_id_ == other;
-    return false;
-  }
-
 #ifdef DEBUG
   virtual void Verify() { }
 #endif

src/objects.cc

@@ -15821,8 +15821,7 @@ Type* PropertyCell::UpdateType(Handle<PropertyCell> cell,
                                Handle<Object> value) {
   Isolate* isolate = cell->GetIsolate();
   Handle<Type> old_type(cell->type(), isolate);
-  Handle<Type> new_type((value->IsSmi() || value->IsJSFunction() ||
-                         value->IsUndefined())
+  Handle<Type> new_type((value->IsSmi() || value->IsUndefined())
                         ? Type::Constant(value, isolate)
                         : Type::Any(), isolate);