Added "isDirectory" method to llvm::sys::Path.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45168 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/System/Win32/Path.inc b/lib/System/Win32/Path.inc
index 994bc67..2484b8a 100644
--- a/lib/System/Win32/Path.inc
+++ b/lib/System/Win32/Path.inc
@@ -254,6 +254,13 @@
 }
 
 bool
+Path::isDirectory() const {
+  DWORD attr = GetFileAttributes(path.c_str());
+  return (attr != INVALID_FILE_ATTRIBUTES) &&
+         (attr & FILE_ATTRIBUTE_DIRECTORY);
+}
+
+bool
 Path::canRead() const {
   // FIXME: take security attributes into account.
   DWORD attr = GetFileAttributes(path.c_str());