Invoke CallToRuntime via Thread instead of ObjectPools.

runtime/vm/assembler_arm.h

 // 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.
 
 #ifndef VM_ASSEMBLER_ARM_H_
 #define VM_ASSEMBLER_ARM_H_
 
 #ifndef VM_ASSEMBLER_H_
 #error Do not include assembler_arm.h directly; use assembler.h instead.
 #endif
@@ skipping 657 matching lines @@
   void blx(Register rm, Condition cond = AL);
 
   void Branch(const StubEntry& stub_entry,
               Patchability patchable = kNotPatchable,
               Register pp = PP,
               Condition cond = AL);
 
   void BranchLink(const StubEntry& stub_entry,
                   Patchability patchable = kNotPatchable);
   void BranchLink(const Code& code, Patchability patchable);
+  void BranchLinkToRuntime();
 
   // Branch and link to an entry address. Call sequence can be patched.
   void BranchLinkPatchable(const StubEntry& stub_entry);
   void BranchLinkPatchable(const Code& code);
 
   // Emit a call that shares its object pool entries with other calls
   // that have the same equivalence marker.
   void BranchLinkWithEquivalence(const StubEntry& stub_entry,
                                  const Object& equivalence);
 
@@ skipping 527 matching lines @@
                      Register new_value,
                      FieldContent old_content);
 
   DISALLOW_ALLOCATION();
   DISALLOW_COPY_AND_ASSIGN(Assembler);
 };
 
 }  // namespace dart
 
 #endif  // VM_ASSEMBLER_ARM_H_