[AST] Fix missing include in Decl.cpp

Nathan Hawes · Nathan Hawes · commit 0034cabe7bdf · 2020-08-21T22:53:50.000-07:00
diff --git a/lib/AST/Decl.cpp b/lib/AST/Decl.cpp
@@ -59,6 +59,7 @@
 #include "swift/Demangling/ManglingMacros.h"
 
 #include "clang/Basic/CharInfo.h"
+#include "clang/Basic/Module.h"
 #include "clang/AST/Attr.h"
 #include "clang/AST/DeclObjC.h"
 
