Provide lprofGetHostName for all windows environments

This function doesn't use anything MSVC specific but works fine
for any _WIN32 target.

Differential Revision: https://reviews.llvm.org/D58106

llvm-svn: 353918

Author: mstorsjo

compiler-rt/lib/profile/InstrProfilingUtil.c

@@ -81,7 +81,7 @@ void *lprofPtrFetchAdd(void **Mem, long ByteIncr) {
 
 #endif
 
-#ifdef _MSC_VER
+#ifdef _WIN32
 COMPILER_RT_VISIBILITY int lprofGetHostName(char *Name, int Len) {
   WCHAR Buffer[COMPILER_RT_MAX_HOSTLEN];
   DWORD BufferSize = sizeof(Buffer);