[Interpreter] Add CallRuntime support to the interpreter.

src/runtime/runtime.h

Index: src/runtime/runtime.h
diff --git a/src/runtime/runtime.h b/src/runtime/runtime.h
index 6e55d747943f9a7a3ef669e2d02512a5e2371903..9086b28e11d32027ad1df473439e96dbfe01d261 100644
--- a/src/runtime/runtime.h
+++ b/src/runtime/runtime.h
@@ -1110,27 +1110,6 @@ FOR_EACH_INTRINSIC_RETURN_OBJECT(F)
 //---------------------------------------------------------------------------
 // Runtime provides access to all C++ runtime functions.
 
-class RuntimeState {
- public:
-  unibrow::Mapping<unibrow::ToUppercase, 128>* to_upper_mapping() {
-    return &to_upper_mapping_;
-  }
-  unibrow::Mapping<unibrow::ToLowercase, 128>* to_lower_mapping() {
-    return &to_lower_mapping_;
-  }
-
- private:
-  RuntimeState() {}
-  unibrow::Mapping<unibrow::ToUppercase, 128> to_upper_mapping_;
-  unibrow::Mapping<unibrow::ToLowercase, 128> to_lower_mapping_;
-
-  friend class Isolate;
-  friend class Runtime;
-
-  DISALLOW_COPY_AND_ASSIGN(RuntimeState);
-};
-
-
 class Runtime : public AllStatic {
  public:
   enum FunctionId {
@@ -1179,6 +1158,9 @@ class Runtime : public AllStatic {
   // Get the intrinsic function with the given function entry address.
   static const Function* FunctionForEntry(Address ref);
 
+  // Get the runtime intrinsic function table.
+  static const Function* RuntimeFunctionTable(Isolate* isolate);
+
   MUST_USE_RESULT static MaybeHandle<Object> DeleteObjectProperty(
       Isolate* isolate, Handle<JSReceiver> receiver, Handle<Object> key,
       LanguageMode language_mode);
@@ -1229,6 +1211,38 @@ class Runtime : public AllStatic {
 };
 
 
+class RuntimeState {
+ public:
+  unibrow::Mapping<unibrow::ToUppercase, 128>* to_upper_mapping() {
+    return &to_upper_mapping_;
+  }
+  unibrow::Mapping<unibrow::ToLowercase, 128>* to_lower_mapping() {
+    return &to_lower_mapping_;
+  }
+
+  Runtime::Function* redirected_intrinsic_functions() {
+    return redirected_intrinsic_functions_.get();
+  }
+
+  void set_redirected_intrinsic_functions(
+      Runtime::Function* redirected_intrinsic_functions) {
+    redirected_intrinsic_functions_.Reset(redirected_intrinsic_functions);
+  }
+
+ private:
+  RuntimeState() {}
+  unibrow::Mapping<unibrow::ToUppercase, 128> to_upper_mapping_;
+  unibrow::Mapping<unibrow::ToLowercase, 128> to_lower_mapping_;
+
+  base::SmartArrayPointer<Runtime::Function> redirected_intrinsic_functions_;
+
+  friend class Isolate;
+  friend class Runtime;
+
+  DISALLOW_COPY_AND_ASSIGN(RuntimeState);
+};
+
+
 std::ostream& operator<<(std::ostream&, Runtime::FunctionId);
 
 //---------------------------------------------------------------------------