Try another way to alias a variable in optimized builds.

Try another way to alias a variable in optimized builds.

The previous way did not fool LTCG optimization.

I tested that this works by doing and LTCG build without this change and verified that the compiler strips out the assignment to program_counter in MessageLoop::RunTask. Then I repeated with this change and verified that the compiler did not strip it out.

TEST=compiles plus the above
BUG=81449
Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=86172

[apatrick_chromium, 2011-05-20 23:03:17]

Please review, thanks.

[darin (slow to review), 2011-05-20 23:28:05]

OK, LGTM