[turbofan]: Convert StringFromCharCode to var-args style TF builtin

src/builtins/builtins.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/builtins/builtins.h"
 #include "src/code-events.h"
 #include "src/code-stub-assembler.h"
 #include "src/ic/ic-state.h"
 #include "src/interface-descriptors.h"
 #include "src/isolate.h"
@@ skipping 66 matching lines @@
   PostBuildProfileAndTracing(isolate, *code, name);
   return *code;
 }
 
 // Builder for builtins implemented in TurboFan with JS linkage.
 Code* BuildWithCodeStubAssemblerJS(Isolate* isolate,
                                    CodeAssemblerGenerator generator, int argc,
                                    Code::Flags flags, const char* name) {
   HandleScope scope(isolate);
   Zone zone(isolate->allocator(), ZONE_NAME);
-  const int argc_with_recv = argc + 1;
+  const int argc_with_recv =
+      (argc == SharedFunctionInfo::kDontAdaptArgumentsSentinel) ? 0 : argc + 1;
   CodeStubAssembler assembler(isolate, &zone, argc_with_recv, flags, name);
   generator(&assembler);
   Handle<Code> code = assembler.GenerateCode();
   PostBuildProfileAndTracing(isolate, *code, name);
   return *code;
 }
 
 // Builder for builtins implemented in TurboFan with CallStub linkage.
 Code* BuildWithCodeStubAssemblerCS(Isolate* isolate,
                                    CodeAssemblerGenerator generator,
@@ skipping 189 matching lines @@
   // TODO(jochen): Remove this.
   if (responsible_context.is_null()) {
     return true;
   }
   if (*responsible_context == target->context()) return true;
   return isolate->MayAccess(responsible_context, target_global_proxy);
 }
 
 }  // namespace internal
 }  // namespace v8