[stubs] Introduce a dedicated FastNewObjectStub.

src/bailout-reason.h

Index: src/bailout-reason.h
diff --git a/src/bailout-reason.h b/src/bailout-reason.h
index dc4186acdfb5af212c473813366314caed93c350..b056b20e679fe5b847573e1b13ce43ddaa1fed00 100644
--- a/src/bailout-reason.h
+++ b/src/bailout-reason.h
@@ -148,6 +148,7 @@ namespace internal {
     "Operand is a smi and not a bound function")                               \
   V(kOperandIsASmiAndNotAFunction, "Operand is a smi and not a function")      \
   V(kOperandIsASmiAndNotAName, "Operand is a smi and not a name")              \
+  V(kOperandIsASmiAndNotAReceiver, "Operand is a smi and not a receiver")      \

[Yang, 2016/02/19 06:51:08]

Imo we don't need to distinguish this case and the one added below.

[Benedikt Meurer, 2016/02/19 06:54:05]

Well, I just followed the approach in the surrounding code. If we want to clean
this up, we should do all of the Assert*'s at once.

   V(kOperandIsASmiAndNotAString, "Operand is a smi and not a string")          \
   V(kOperandIsASmi, "Operand is a smi")                                        \
   V(kOperandIsNotADate, "Operand is not a date")                               \
@@ -155,6 +156,7 @@ namespace internal {
   V(kOperandIsNotAFunction, "Operand is not a function")                       \
   V(kOperandIsNotAName, "Operand is not a name")                               \
   V(kOperandIsNotANumber, "Operand is not a number")                           \
+  V(kOperandIsNotAReceiver, "Operand is not a receiver")                       \
   V(kOperandIsNotASmi, "Operand is not a smi")                                 \
   V(kOperandIsNotAString, "Operand is not a string")                           \
   V(kOperandIsNotSmi, "Operand is not smi")                                    \