[runtime] Rewrite Function.prototype.toString in C++.

src/runtime/runtime.h

Index: src/runtime/runtime.h
diff --git a/src/runtime/runtime.h b/src/runtime/runtime.h
index 8119138bb9afce5d7000b0c349a56b3c4d086e51..5ec87e7a960c62c5e01c5b4f4302e51f1ac4814d 100644
--- a/src/runtime/runtime.h
+++ b/src/runtime/runtime.h
@@ -84,7 +84,6 @@ namespace internal {
   F(DefineClass, 5, 1)                      \
   F(FinalizeClassDefinition, 2, 1)          \
   F(DefineClassMethod, 3, 1)                \
-  F(ClassGetSourceCode, 1, 1)               \
   F(LoadFromSuper, 4, 1)                    \
   F(LoadKeyedFromSuper, 4, 1)               \
   F(StoreToSuper_Strict, 4, 1)              \
@@ -232,36 +231,33 @@ namespace internal {
   F(InterpreterForInPrepare, 1, 1)
 
 
-#define FOR_EACH_INTRINSIC_FUNCTION(F)        \
-  F(FunctionGetName, 1, 1)                    \
-  F(FunctionSetName, 2, 1)                    \
-  F(FunctionNameShouldPrintAsAnonymous, 1, 1) \
-  F(CompleteFunctionConstruction, 3, 1)       \
-  F(FunctionIsArrow, 1, 1)                    \
-  F(FunctionIsConciseMethod, 1, 1)            \
-  F(FunctionRemovePrototype, 1, 1)            \
-  F(FunctionGetScript, 1, 1)                  \
-  F(FunctionGetSourceCode, 1, 1)              \
-  F(FunctionGetScriptSourcePosition, 1, 1)    \
-  F(FunctionGetPositionForOffset, 2, 1)       \
-  F(FunctionSetInstanceClassName, 2, 1)       \
-  F(FunctionSetLength, 2, 1)                  \
-  F(FunctionSetPrototype, 2, 1)               \
-  F(FunctionIsAPIFunction, 1, 1)              \
-  F(FunctionHidesSource, 1, 1)                \
-  F(SetCode, 2, 1)                            \
-  F(SetNativeFlag, 1, 1)                      \
-  F(ThrowStrongModeTooFewArguments, 0, 1)     \
-  F(IsConstructor, 1, 1)                      \
-  F(SetForceInlineFlag, 1, 1)                 \
-  F(FunctionBindArguments, 5, 1)              \
-  F(BoundFunctionGetBindings, 1, 1)           \
-  F(NewObjectFromBound, 1, 1)                 \
-  F(Call, -1 /* >= 2 */, 1)                   \
-  F(TailCall, -1 /* >= 2 */, 1)               \
-  F(Apply, 5, 1)                              \
-  F(ConvertReceiver, 1, 1)                    \
-  F(IsFunction, 1, 1)
+#define FOR_EACH_INTRINSIC_FUNCTION(F)     \
+  F(FunctionGetName, 1, 1)                 \
+  F(FunctionSetName, 2, 1)                 \
+  F(CompleteFunctionConstruction, 3, 1)    \
+  F(FunctionRemovePrototype, 1, 1)         \
+  F(FunctionGetScript, 1, 1)               \
+  F(FunctionGetSourceCode, 1, 1)           \
+  F(FunctionGetScriptSourcePosition, 1, 1) \
+  F(FunctionGetPositionForOffset, 2, 1)    \
+  F(FunctionSetInstanceClassName, 2, 1)    \
+  F(FunctionSetLength, 2, 1)               \
+  F(FunctionSetPrototype, 2, 1)            \
+  F(FunctionIsAPIFunction, 1, 1)           \
+  F(SetCode, 2, 1)                         \
+  F(SetNativeFlag, 1, 1)                   \
+  F(ThrowStrongModeTooFewArguments, 0, 1)  \
+  F(IsConstructor, 1, 1)                   \
+  F(SetForceInlineFlag, 1, 1)              \
+  F(FunctionBindArguments, 5, 1)           \
+  F(BoundFunctionGetBindings, 1, 1)        \
+  F(NewObjectFromBound, 1, 1)              \
+  F(Call, -1 /* >= 2 */, 1)                \
+  F(TailCall, -1 /* >= 2 */, 1)            \
+  F(Apply, 5, 1)                           \
+  F(ConvertReceiver, 1, 1)                 \
+  F(IsFunction, 1, 1)                      \
+  F(FunctionToString, 1, 1)
 
 
 #define FOR_EACH_INTRINSIC_GENERATOR(F) \
@@ -274,7 +270,6 @@ namespace internal {
   F(GeneratorGetReceiver, 1, 1)         \
   F(GeneratorGetContinuation, 1, 1)     \
   F(GeneratorGetSourcePosition, 1, 1)   \
-  F(FunctionIsGenerator, 1, 1)          \
   F(GeneratorNext, 2, 1)                \
   F(GeneratorThrow, 2, 1)