Add UDIV to ARM integrated assembler.

src/DartARM32/assembler_arm.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.
 //
 // This is forked from Dart revision df52deea9f25690eb8b66c5995da92b70f7ac1fe
 // Please update the (git) revision if we merge changes from Dart.
 // https://code.google.com/p/dart/wiki/GettingTheSource
 
 #include "vm/globals.h"  // NOLINT
 #if defined(TARGET_ARCH_ARM)
@@ skipping 451 matching lines @@
       // TODO(kschimpf): Why not also: B15 | B14 | B13 | B12?
     B26 | B25 | B24 | B20 | B4 |
     (static_cast<int32_t>(rm) << kDivRmShift);
   Emit(encoding);
 }
 
 // Moved to ARM32::AssemblerARM32::sdiv()
 void Assembler::sdiv(Register rd, Register rn, Register rm, Condition cond) {
   EmitDivOp(cond, 0, rd, rn, rm);
 }
-#endif
 
+// Moved to ARM32::AssemblerARM32::udiv()
 void Assembler::udiv(Register rd, Register rn, Register rm, Condition cond) {
   EmitDivOp(cond, B21 , rd, rn, rm);
 }
 
-
-#if 0
 // Moved to ARM32::AssemblerARM32::ldr()
 void Assembler::ldr(Register rd, Address ad, Condition cond) {
   EmitMemOp(cond, true, false, rd, ad);
 }
 
 // Moved to ARM32::AssemblerARM32::str()
 void Assembler::str(Register rd, Address ad, Condition cond) {
   EmitMemOp(cond, false, false, rd, ad);
 }
 
@@ skipping 3187 matching lines @@
 
 
 const char* Assembler::FpuRegisterName(FpuRegister reg) {
   ASSERT((0 <= reg) && (reg < kNumberOfFpuRegisters));
   return fpu_reg_names[reg];
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_ARM