Add CMP(register) and CMP(Immediate) to ARM integerated assembler.

src/DartARM32/assembler_arm.cc

Index: src/DartARM32/assembler_arm.cc
diff --git a/src/DartARM32/assembler_arm.cc b/src/DartARM32/assembler_arm.cc
index a386bc2a86a0ca074a29d607409a4724036fc566..2f09b499d1dcda1cbf0f9fc915b1252275ec8e43 100644
--- a/src/DartARM32/assembler_arm.cc
+++ b/src/DartARM32/assembler_arm.cc
@@ -266,9 +266,12 @@ void Assembler::teq(Register rn, Operand o, Condition cond) {
 }
 
 
+#if 0
+// Moved to ARM32::AssemblerARM32::cmp()
 void Assembler::cmp(Register rn, Operand o, Condition cond) {
   EmitType01(cond, o.type(), CMP, 1, rn, R0, o);
 }
+#endif
 
 
 void Assembler::cmn(Register rn, Operand o, Condition cond) {