[PATCH] Windows: Add support for unicode command lines

[Yunzhong Gao]

  In lib/Support/Windows/Signals.inc,
  + HMODULE hLib = ::LoadLibrary(TEXT("Dbghelp.dll"));

  Will LoadLibrary accept unicode file names, or do you have to use LoadLibraryW instead?

http://llvm-reviews.chandlerc.com/D1834

BRANCH
  winpath

ARCANIST PROJECT
  llvm