Call JS functions via native context instead of js builtins object.

src/runtime/runtime.cc

Index: src/runtime/runtime.cc
diff --git a/src/runtime/runtime.cc b/src/runtime/runtime.cc
index a490327af5266b5aac5e4cbe99a0f73cfa0a4797..30cd069953de35ece29c73248210349fb12d13f8 100644
--- a/src/runtime/runtime.cc
+++ b/src/runtime/runtime.cc
@@ -4,6 +4,7 @@
 
 #include "src/runtime/runtime.h"
 
+#include "src/contexts.h"
 #include "src/handles-inl.h"
 #include "src/heap/heap.h"
 #include "src/isolate.h"
@@ -41,9 +42,10 @@ FOR_EACH_INTRINSIC_RETURN_PAIR(P)
   }                                                                \
   ,
 
-
 static const Runtime::Function kIntrinsicFunctions[] = {
-    FOR_EACH_INTRINSIC(F) FOR_EACH_INTRINSIC(I)};
+  FOR_EACH_INTRINSIC(F)
+  FOR_EACH_INTRINSIC(I)
+};
 
 #undef I
 #undef F
@@ -79,7 +81,8 @@ const Runtime::Function* Runtime::FunctionForName(Handle<String> name) {
 
 const Runtime::Function* Runtime::FunctionForEntry(Address entry) {
   for (size_t i = 0; i < arraysize(kIntrinsicFunctions); ++i) {
-    if (entry == kIntrinsicFunctions[i].entry) {
+    if (kIntrinsicFunctions[i].intrinsic_type == RUNTIME &&

[Michael Starzinger, 2015/08/26 09:43:22]

Is this needed? This looks fishy to me!

[Yang, 2015/08/26 10:27:30]

Done.

+        entry == kIntrinsicFunctions[i].entry) {
       return &(kIntrinsicFunctions[i]);
     }
   }