Make kAsciiDataHintTag have correct semantics for all both 1 and 2 byte string types.

Make kAsciiDataHintTag have correct semantics for all both 1 and 2 byte string types.


BUG=

Committed: https://code.google.com/p/v8/source/detail?r=12966

[drcarney, 2012-11-14 16:08:32]

Okay, another attempt. I changed 1 instruction to 2 in the intel code-stubs
files only because I wasn't sure if I could better use that single instruction
to shift 8 bits.

[Yang, 2012-11-15 10:28:32]

On 2012/11/14 16:08:32, dcarney wrote:
> Okay, another attempt. I changed 1 instruction to 2 in the intel code-stubs
> files only because I wasn't sure if I could better use that single instruction
> to shift 8 bits.

LGTM.