Remove kInvalidStrictFlag and make gcc-4.5 happy again.

Remove kInvalidStrictFlag and make gcc-4.5 happy again.

Committed: http://code.google.com/p/v8/source/detail?r=9832

[Steven, 2011-10-27 13:17:40]

PTAL. Removed the flag, fixed the following error and did some cleanups.

../src/runtime.cc: In function 'v8::internal::MaybeObject*
v8::internal::Runtime_SetProperty(v8::internal::Arguments,
v8::internal::Isolate*)':
../src/runtime.cc:4598:5: error: comparison always false due to limited range of
data type

[Lasse Reichstein, 2011-10-28 08:32:45]

LGTM.

If you want fewer repetitions (which really isn't necessary), you could have a
static function converting int to StrictModeFlag somewhere, and have it do the
checking.