VM: Fix more places with isolate embedded into unoptimized code.

runtime/vm/stub_code_x64.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/globals.h"
 #if defined(TARGET_ARCH_X64)
 
 #include "vm/assembler.h"
 #include "vm/compiler.h"
 #include "vm/dart_entry.h"
@@ skipping 2013 matching lines @@
                            RawBigint* left,
                            RawBigint* right);
 
 
 // Does identical check (object references are equal or not equal) with special
 // checks for boxed numbers.
 // Left and right are pushed on stack.
 // Return ZF set.
 // Note: A Mint cannot contain a value that would fit in Smi, a Bigint
 // cannot contain a value that fits in Mint or Smi.
-void StubCode::GenerateIdenticalWithNumberCheckStub(Assembler* assembler,
-                                                    const Register left,
-                                                    const Register right,
-                                                    const Register unused1,
-                                                    const Register unused2) {
+static void GenerateIdenticalWithNumberCheckStub(Assembler* assembler,
+                                                 const Register left,
+                                                 const Register right) {
   Label reference_compare, done, check_mint, check_bigint;
   // If any of the arguments is Smi do reference compare.
   __ testq(left, Immediate(kSmiTagMask));
   __ j(ZERO, &reference_compare);
   __ testq(right, Immediate(kSmiTagMask));
   __ j(ZERO, &reference_compare);
 
   // Value compare for two doubles.
   __ CompareClassId(left, kDoubleCid);
   __ j(NOT_EQUAL, &check_mint, Assembler::kNearJump);
@@ skipping 135 matching lines @@
 // Result:
 //  RCX: entry point.
 void StubCode::GenerateMegamorphicLookupStub(Assembler* assembler) {
   EmitMegamorphicLookup(assembler, RDI, RBX, RCX);
   __ ret();
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_X64