Support load function prototype in hydrogen/lithium.

src/ia32/lithium-ia32.h

Index: src/ia32/lithium-ia32.h
diff --git a/src/ia32/lithium-ia32.h b/src/ia32/lithium-ia32.h
index 3f48e50e22d765c3f6a26d2f82ec798dd7752a1a..efd4ab551364a610deab53c66953418c12616b3d 100644
--- a/src/ia32/lithium-ia32.h
+++ b/src/ia32/lithium-ia32.h
@@ -130,6 +130,7 @@ class LGapNode;
 //     LIsSmiAndBranch
 //     LLoadNamedField
 //     LLoadNamedGeneric
+//     LLoadFunctionPrototype
 //     LNumberTagD
 //     LNumberTagI
 //     LPushArgument
@@ -226,6 +227,7 @@ class LGapNode;
   V(LoadKeyedGeneric)                           \
   V(LoadNamedField)                             \
   V(LoadNamedGeneric)                           \
+  V(LoadFunctionPrototype)                      \
   V(ModI)                                       \
   V(MulI)                                       \
   V(NumberTagD)                                 \
@@ -1271,6 +1273,22 @@ class LLoadNamedGeneric: public LUnaryOperation {
 };
 
 
+class LLoadFunctionPrototype: public LUnaryOperation {
+ public:
+  LLoadFunctionPrototype(LOperand* function, LOperand* temporary)
+      : LUnaryOperation(function), temporary_(temporary) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(LoadFunctionPrototype, "load-function-prototype")
+  DECLARE_HYDROGEN_ACCESSOR(LoadFunctionPrototype)
+
+  LOperand* function() const { return input(); }
+  LOperand* temporary() const { return temporary_; }
+
+ private:
+  LOperand* temporary_;
+};
+
+
 class LLoadElements: public LUnaryOperation {
  public:
   explicit LLoadElements(LOperand* obj) : LUnaryOperation(obj) { }