X87: Fix %FunctionGetName and %_ClassOf for bound functions.

src/full-codegen/x87/full-codegen-x87.cc

Index: src/full-codegen/x87/full-codegen-x87.cc
diff --git a/src/full-codegen/x87/full-codegen-x87.cc b/src/full-codegen/x87/full-codegen-x87.cc
index 753db70d5404f03e912d676ad18d663457feaa1b..c21a53ad3c5658920b943b95bad3d89f8b93f6d8 100644
--- a/src/full-codegen/x87/full-codegen-x87.cc
+++ b/src/full-codegen/x87/full-codegen-x87.cc
@@ -2715,9 +2715,10 @@ void FullCodeGenerator::EmitClassOf(CallRuntime* expr) {
   __ CmpObjectType(eax, FIRST_JS_RECEIVER_TYPE, eax);
   __ j(below, &null, Label::kNear);
 
-  // Return 'Function' for JSFunction objects.
-  __ CmpInstanceType(eax, JS_FUNCTION_TYPE);
-  __ j(equal, &function, Label::kNear);
+  // Return 'Function' for JSFunction and JSBoundFunction objects.
+  __ CmpInstanceType(eax, FIRST_FUNCTION_TYPE);
+  STATIC_ASSERT(LAST_FUNCTION_TYPE == LAST_TYPE);
+  __ j(above_equal, &function, Label::kNear);
 
   // Check if the constructor in the map is a JS function.
   __ GetMapConstructor(eax, eax, ebx);