ConstantPoolSizeAt() should return number of Instructions instead, otherwise,...

ConstantPoolSizeAt() should return number of Instructions instead, otherwise, some of the code will be treated as constant pool when printing code in ARM disassembler.

BUG=none

TEST=none
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/23654005

Patch from Bangfu Tao <bangfu.tao@samsung.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16419 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/arm/disasm-arm.cc

@@ -1655,7 +1655,7 @@ bool Decoder::IsConstantPoolAt(byte* instr_ptr) {
 int Decoder::ConstantPoolSizeAt(byte* instr_ptr) {
   if (IsConstantPoolAt(instr_ptr)) {
     int instruction_bits = *(reinterpret_cast<int*>(instr_ptr));
-    return DecodeConstantPoolLength(instruction_bits);
+    return DecodeConstantPoolLength(instruction_bits) / Assembler::kInstrSize;
   } else {
     return -1;
   }