Turn Function.prototype.bind into a hydrogen stub optimized for the common case

src/interface-descriptors.h

Index: src/interface-descriptors.h
diff --git a/src/interface-descriptors.h b/src/interface-descriptors.h
index 3239a55f5f367bbb9045f30c95f0a52402eefa19..bab38793165df7e239625837b186d744ff2a682e 100644
--- a/src/interface-descriptors.h
+++ b/src/interface-descriptors.h
@@ -22,7 +22,7 @@ class PlatformInterfaceDescriptor;
   V(VectorStoreICTrampoline)           \
   V(VectorStoreIC)                     \
   V(LoadWithVector)                    \
-  V(FastArrayPush)                     \
+  V(VarArgFunction)                    \
   V(FastNewClosure)                    \
   V(FastNewContext)                    \
   V(FastNewObject)                     \
@@ -791,9 +791,9 @@ class ContextOnlyDescriptor : public CallInterfaceDescriptor {
   DECLARE_DESCRIPTOR(ContextOnlyDescriptor, CallInterfaceDescriptor)
 };
 
-class FastArrayPushDescriptor : public CallInterfaceDescriptor {
+class VarArgFunctionDescriptor : public CallInterfaceDescriptor {
  public:
-  DECLARE_DESCRIPTOR_WITH_CUSTOM_FUNCTION_TYPE(FastArrayPushDescriptor,
+  DECLARE_DESCRIPTOR_WITH_CUSTOM_FUNCTION_TYPE(VarArgFunctionDescriptor,
                                                CallInterfaceDescriptor)
 };