Index: lib/ASTMatchers/Dynamic/Registry.cpp
===================================================================
--- lib/ASTMatchers/Dynamic/Registry.cpp
+++ lib/ASTMatchers/Dynamic/Registry.cpp
@@ -355,6 +355,7 @@
   REGISTER_MATCHER(labelDecl);
   REGISTER_MATCHER(labelStmt);
   REGISTER_MATCHER(lambdaExpr);
+  REGISTER_MATCHER(linkageSpecDecl);
   REGISTER_MATCHER(lValueReferenceType);
   REGISTER_MATCHER(matchesName);
   REGISTER_MATCHER(matchesSelector);