Try to force Unix line endings.

git-svn-id: http://include-what-you-use.googlecode.com/svn/trunk@488 812d1f90-f944-d88a-411a-122bdc93e1ea
Fix line endings for all elaborated_type test files.

git-svn-id: http://include-what-you-use.googlecode.com/svn/trunk@489 812d1f90-f944-d88a-411a-122bdc93e1ea