IDL: Make v8_utilities.py not depend on v8_types.py

IDL: Make v8_utilities.py not depend on v8_types.py

This is useful since v8_types.py depends on v8_utilities.py, indirectly.
Thus, if v8_utilities.py imports v8_types like it currently does, it is
not possible to import v8_utilities unless v8_types has been imported
first.

All v8_utilities.py actually used from v8_types.py was a helper function
that returns a string with 'V8' prepended. I think we can afford to
duplicate this functionality.

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=194981

[Jens Widell, 2015-05-06 13:37:36]

jl@opera.com changed reviewers:
+ haraken@chromium.org

[Jens Widell, 2015-05-06 13:37:37]

PTAL

Most complicated patch ever.

The added import of v8_types here is why:
https://codereview.chromium.org/1101583003/diff/80001/Source/bindings/scripts...

[vivekg, 2015-05-06 13:51:29]

On 2015/05/06 at 13:37:37, jl wrote:
> PTAL
> 
> Most complicated patch ever.

+1 :)

LGTM

[haraken, 2015-05-06 13:55:03]

LGTM

[Jens Widell, 2015-05-06 14:07:06]

The CQ bit was checked by jl@opera.com

[commit-bot: I haz the power, 2015-05-06 14:07:13]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1129803002/1

[commit-bot: I haz the power, 2015-05-06 15:46:54]

Committed patchset #1 (id:1) as
https://src.chromium.org/viewvc/blink?view=rev&revision=194981