Fix performance degradation in Havlak: prevent conflicting method recognizer kinds to be stored in …

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 1192 matching lines @@
                  Assembler::kNearJump,
                  RAX,  // Result register.
                  kNoRegister);  // Pool pointer might not be loaded.
   __ movsd(FieldAddress(RAX, Double::value_offset()), XMM0);
   __ ret();
   __ Bind(&fall_through);
 }
 
 
 // Left is double right is integer (Bigint, Mint or Smi)
-void Intrinsifier::Double_fromInteger(Assembler* assembler) {
+void Intrinsifier::DoubleFromInteger(Assembler* assembler) {
   Label fall_through;
   __ movq(RAX, Address(RSP, +1 * kWordSize));
   __ testq(RAX, Immediate(kSmiTagMask));
   __ j(NOT_ZERO, &fall_through, Assembler::kNearJump);
   // Is Smi.
   __ SmiUntag(RAX);
   __ cvtsi2sd(XMM0, RAX);
   const Class& double_class = Class::Handle(
       Isolate::Current()->object_store()->double_class());
   __ TryAllocate(double_class,
@@ skipping 179 matching lines @@
   __ j(NOT_EQUAL, &fall_through, Assembler::kNearJump);
   ASSERT(kSmiTagShift == 1);
   __ movzxw(RAX, FieldAddress(RAX, RCX, TIMES_1, OneByteString::data_offset()));
   __ SmiTag(RAX);
   __ ret();
 
   __ Bind(&fall_through);
 }
 
 
-void Intrinsifier::StringBase_charAt(Assembler* assembler) {
+void Intrinsifier::StringBaseCharAt(Assembler* assembler) {
   Label fall_through, try_two_byte_string;
   __ 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 375 matching lines @@
   // Set return value to Isolate::current_tag_.
   __ movq(RAX, Address(RBX, Isolate::current_tag_offset()));
   __ ret();
 }
 
 #undef __
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_X64