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

src/crankshaft/hydrogen-instructions.cc

Index: src/crankshaft/hydrogen-instructions.cc
diff --git a/src/crankshaft/hydrogen-instructions.cc b/src/crankshaft/hydrogen-instructions.cc
index fb810ff16f12cdc2af37b50b54209a9aa8de67b6..4e1d6112526db4f36f4b7b86b83b6f1cc22c6f26 100644
--- a/src/crankshaft/hydrogen-instructions.cc
+++ b/src/crankshaft/hydrogen-instructions.cc
@@ -1553,6 +1553,9 @@ void HCheckInstanceType::GetCheckInterval(InstanceType* first,
     case IS_JS_ARRAY:
       *first = *last = JS_ARRAY_TYPE;
       return;
+    case IS_JS_FUNCTION:
+      *first = *last = JS_FUNCTION_TYPE;
+      return;
     case IS_JS_DATE:
       *first = *last = JS_DATE_TYPE;
       return;
@@ -1625,6 +1628,8 @@ const char* HCheckInstanceType::GetCheckName() const {
   switch (check_) {
     case IS_JS_RECEIVER: return "object";
     case IS_JS_ARRAY: return "array";
+    case IS_JS_FUNCTION:
+      return "function";
     case IS_JS_DATE:
       return "date";
     case IS_STRING: return "string";