System/Path/Windows: Implement GetLLVMDefaultConfigDir.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118507 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/System/Win32/Path.inc b/lib/System/Win32/Path.inc
index b0cca0e..4760dfd 100644
--- a/lib/System/Win32/Path.inc
+++ b/lib/System/Win32/Path.inc
@@ -287,8 +287,10 @@
 
 Path
 Path::GetLLVMDefaultConfigDir() {
-  // TODO: this isn't going to fly on Windows
-  return Path("/etc/llvm");
+  Path ret = GetUserHomeDirectory();
+  if(!ret.appendComponent(".llvm"))
+    assert(0 && "Failed to append .llvm");
+  return ret;
 }
 
 Path