[sanitizers] Explicitly use GetModuleFileNameW with wchar_t
[sanitizers] Explicitly use GetModuleFileNameW with wchar_t

Alternatively we could define the string as TCHAR.

Differential Revision: https://reviews.llvm.org/D58766

git-svn-id: c199f293c43da69278bea8e88f92242bf3aa95f7@355180 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt