[libcxx] [test] Fix line endings, avoid unnecessary non-ASCII.
I recently wrote a tool to audit MSVC's codebase for inconsistent line endings and unnecessary non-ASCII characters, and I ran it over libcxx's codebase too. I don't need any of these changes to be committed, so feel free to reject them - I just thought you might be interested.
There's a significant non-ASCII string in test/std/re/re.alg/re.alg.search/grep.pass.cpp which I haven't attempted to convert into escapes.
TODO.TXT
Avoid non-ASCII characters.
benchmarks/util_smartptr.bench.cpp
Change CRLF to LF.
test/std/localization/locale.categories/category.monetary/locale.money.get/locale.money.get.members/get_long_double_fr_FR.pass.cpp
Consistently comment "\u20ac" as EURO SIGN, its Unicode name, instead of the actual Unicode character.
test/std/utilities/allocator.adaptor/allocator.adaptor.members/construct_type.pass.cpp
Avoid non-ASCII dash.