Remove deprecated string features.

runtime/vm/intrinsifier_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"  // Needed here to get TARGET_ARCH_X64.
 #if defined(TARGET_ARCH_X64)
 
 #include "vm/intrinsifier.h"
 
 #include "vm/assembler.h"
@@ skipping 1711 matching lines @@
 
 bool Intrinsifier::String_getLength(Assembler* assembler) {
   __ movq(RAX, Address(RSP, + 1 * kWordSize));  // String object.
   __ movq(RAX, FieldAddress(RAX, String::length_offset()));
   __ ret();
   return true;
 }
 
 
 // TODO(srdjan): Implement for two and four byte strings as well.
-bool Intrinsifier::String_charCodeAt(Assembler* assembler) {
+bool Intrinsifier::String_codeUnitAt(Assembler* assembler) {
   Label fall_through;
   __ movq(RCX, Address(RSP, + 1 * kWordSize));  // Index.
   __ movq(RAX, Address(RSP, + 2 * kWordSize));  // String.
   __ testq(RCX, Immediate(kSmiTagMask));
   __ j(NOT_ZERO, &fall_through, Assembler::kNearJump);  // Non-smi index.
   // Range check.
   __ cmpq(RCX, FieldAddress(RAX, String::length_offset()));
   // Runtime throws exception.
   __ j(ABOVE_EQUAL, &fall_through, Assembler::kNearJump);
   __ CompareClassId(RAX, kOneByteStringCid);
@@ skipping 20 matching lines @@
   __ LoadObject(RAX, Bool::True());
   __ ret();
   return true;
 }
 
 #undef __
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_X64