[stubs] Port LoadFunctionPrototypeStub to CSA

src/mips64/code-stubs-mips64.cc

Index: src/mips64/code-stubs-mips64.cc
diff --git a/src/mips64/code-stubs-mips64.cc b/src/mips64/code-stubs-mips64.cc
index 8776d205c160d12a7a88de8e619e87b0423e2f07..303dcd53eea1f6c87d3b7f43ef2adcb49d74ccc5 100644
--- a/src/mips64/code-stubs-mips64.cc
+++ b/src/mips64/code-stubs-mips64.cc
@@ -1272,22 +1272,6 @@ void JSEntryStub::Generate(MacroAssembler* masm) {
   __ Jump(ra);
 }
 
-void FunctionPrototypeStub::Generate(MacroAssembler* masm) {
-  Label miss;
-  Register receiver = LoadDescriptor::ReceiverRegister();
-  // Ensure that the vector and slot registers won't be clobbered before
-  // calling the miss handler.
-  DCHECK(!AreAliased(a4, a5, LoadWithVectorDescriptor::VectorRegister(),
-                     LoadWithVectorDescriptor::SlotRegister()));
-
-  NamedLoadHandlerCompiler::GenerateLoadFunctionPrototype(masm, receiver, a4,
-                                                          a5, &miss);
-  __ bind(&miss);
-  PropertyAccessCompiler::TailCallBuiltin(
-      masm, PropertyAccessCompiler::MissBuiltin(Code::LOAD_IC));
-}
-
-
 void RegExpExecStub::Generate(MacroAssembler* masm) {
   // Just jump directly to runtime if native RegExp is not selected at compile
   // time or if regexp entry in generated code is turned off runtime switch or