Fix crashes because of far jumps.

runtime/vm/intermediate_language_x64.cc

 // Copyright (c) 2012, 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/intermediate_language.h"
 
 #include "lib/error.h"
@@ skipping 359 matching lines @@
   } else {
     __ j(ZERO, deopt);  // Smi deopts.
     __ LoadClassId(temp, left);
   }
   Condition cond = TokenKindToSmiCondition(kind);
   Label done;
   for (intptr_t i = 0; i < ic_data.NumberOfChecks(); i++) {
     ASSERT((ic_data.GetReceiverClassIdAt(i) != kSmi) || (i == 0));
     Label next_test;
     __ cmpq(temp, Immediate(ic_data.GetReceiverClassIdAt(i)));
-    __ j(NOT_EQUAL, &next_test, Assembler::kNearJump);
+    __ j(NOT_EQUAL, &next_test);
     const Function& target = Function::ZoneHandle(ic_data.GetTargetAt(i));
     ObjectStore* object_store = Isolate::Current()->object_store();
     if (target.owner() == object_store->object_class()) {
       // Object.== is same as ===.
       __ Drop(2);
       __ cmpq(left, right);
       if (branch != NULL) {
         branch->EmitBranchOnCondition(compiler, cond);
       } else {
         // This case should be rare.
@@ skipping 13 matching lines @@
                                    try_index,
                                    target,
                                    kNumberOfArguments,
                                    kNoArgumentNames);
       if (branch == NULL) {
         if (kind == Token::kNE) {
           Label false_label;
           __ CompareObject(RAX, compiler->bool_true());
           __ j(EQUAL, &false_label, Assembler::kNearJump);
           __ LoadObject(RAX, compiler->bool_true());
-          __ jmp(&done, Assembler::kNearJump);
+          __ jmp(&done);
           __ Bind(&false_label);
           __ LoadObject(RAX, compiler->bool_false());
           __ jmp(&done);
         }
       } else {
         __ CompareObject(RAX, compiler->bool_true());
         branch->EmitBranchOnCondition(compiler, cond);
       }
     }
     __ jmp(&done);
@@ skipping 1745 matching lines @@
   ASSERT(locs()->out().reg() == RAX);
   __ CompareObject(locs()->out().reg(), compiler->bool_true());
   EmitBranchOnCondition(compiler, branch_condition);
 }
 
 }  // namespace dart
 
 #undef __
 
 #endif  // defined TARGET_ARCH_X64