Optimize functions containing try-catch on MIPS.

runtime/vm/assembler_mips.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_MIPS_H_
 #define VM_ASSEMBLER_MIPS_H_
 
 #ifndef VM_ASSEMBLER_H_
 #error Do not include assembler_mips.h directly; use assembler.h instead.
 #endif
@@ skipping 52 matching lines @@
     return (base_ << kRsShift) | imm_value;
   }
 
   static bool CanHoldOffset(int32_t offset) {
     return Utils::IsInt(kImmBits, offset);
   }
 
   Register base() const { return base_; }
   int32_t offset() const { return offset_; }
 
+  bool Equals(const Address& other) {
+    return (base_ == other.base_) && (offset_ == other.offset_);
+  }
+
  private:
   Register base_;
   int32_t offset_;
 };
 
 
 class FieldAddress : public Address {
  public:
   FieldAddress(Register base, int32_t disp)
       : Address(base, disp - kHeapObjectTag) { }
@@ skipping 1161 matching lines @@
                                   Register value,
                                   Label* no_update);
 
   DISALLOW_ALLOCATION();
   DISALLOW_COPY_AND_ASSIGN(Assembler);
 };
 
 }  // namespace dart
 
 #endif  // VM_ASSEMBLER_MIPS_H_