Sink getName into DirectoryLookup to simplify the client in clang.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@45106 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Lex/HeaderSearch.cpp b/Lex/HeaderSearch.cpp
index 1d79eff..99d0d52 100644
--- a/Lex/HeaderSearch.cpp
+++ b/Lex/HeaderSearch.cpp
@@ -82,6 +82,18 @@
 // File lookup within a DirectoryLookup scope
 //===----------------------------------------------------------------------===//
 
+/// getName - Return the directory or filename corresponding to this lookup
+/// object.
+const char *DirectoryLookup::getName() const {
+  if (isNormalDir())
+    return getDir()->getName();
+  if (isFramework())
+    return getFrameworkDir()->getName();
+  assert(isHeaderMap() && "Unknown DirectoryLookup");
+  return getHeaderMap()->getFileName();
+}
+
+
 /// LookupFile - Lookup the specified file in this search path, returning it
 /// if it exists or returning null if not.
 const FileEntry *DirectoryLookup::LookupFile(const char *FilenameStart,