linux: StackTrace test isn't expected to work in Release builds anymore
linux: StackTrace test isn't expected to work in Release builds anymore

Dropping the exception unwind data cut our executable size considerably,
but it means we can't get stack traces anymore in Release builds, so
stop this test early in that case.

Review URL: http://codereview.chromium.org/399069

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@32346 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser