[MS Demangler] Demangle string literals.
When demangling string literals, Microsoft's undname
simply prints 'string'. This patch implements string
literal demangling while doing a bit better than this
by decoding as much of the string as possible and
trying to faithfully reproduce the original string
literal definition.
This is a bit tricky because the different character
types char, char16_t, and char32_t are not uniquely
identified by the mangling, so we have to use a
heuristic to try to guess the character type. But
it works pretty well, and many tests are added to
illustrate the behavior.
Differential Revision: https://reviews.llvm.org/D50806
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@339892 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed