[VFS] Use llvm::StringMap instead of std::map. NFC

llvm-svn: 342889

diff --git a/clang/lib/Basic/VirtualFileSystem.cpp b/clang/lib/Basic/VirtualFileSystem.cpp
index e5eb5e4..56fc336 100644 (file)
--- a/clang/lib/Basic/VirtualFileSystem.cpp
+++ b/clang/lib/Basic/VirtualFileSystem.cpp
@@ -566,7 +566,7 @@ public:
 
 class InMemoryDirectory : public InMemoryNode {
   Status Stat;
-  std::map<std::string, std::unique_ptr<InMemoryNode>> Entries;
+  llvm::StringMap<std::unique_ptr<InMemoryNode>> Entries;
 
 public:
   InMemoryDirectory(Status Stat)