Add TST(register, immediate) to ARM32 integrated 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 410edcd26df5103ceb20eb28306c38d3868390ad..7f1a5163003acf2df6fdf145cfe8efebf75c7a09 100644
--- a/src/DartARM32/assembler_arm.cc
+++ b/src/DartARM32/assembler_arm.cc
@@ -255,11 +255,12 @@ void Assembler::rsc(Register rd, Register rn, Operand o, Condition cond) {
   EmitType01(cond, o.type(), RSC, 0, rn, rd, o);
 }
 
-
+#if 0
+// Moved to ARM32::AssemblerARM32::tst()
 void Assembler::tst(Register rn, Operand o, Condition cond) {
   EmitType01(cond, o.type(), TST, 1, rn, R0, o);
 }
-
+#endif
 
 void Assembler::teq(Register rn, Operand o, Condition cond) {
   EmitType01(cond, o.type(), TEQ, 1, rn, R0, o);