diff --git a/clang/lib/Basic/TokenKinds.cpp b/clang/lib/Basic/TokenKinds.cpp
index a71cd72..0426edc 100644
--- a/clang/lib/Basic/TokenKinds.cpp
+++ b/clang/lib/Basic/TokenKinds.cpp
@@ -45,3 +45,13 @@
   }
   return nullptr;
 }
+
+bool tok::isPragmaAnnotation(TokenKind Kind) {
+  switch (Kind) {
+#define PRAGMA_ANNOTATION(X) case annot_ ## X: return true;
+#include "clang/Basic/TokenKinds.def"
+  default:
+    break;
+  }
+  return false;
+}