Split LookupResult into its own header.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89199 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaOverload.cpp b/lib/Sema/SemaOverload.cpp
index c39cab2..adcd977 100644
--- a/lib/Sema/SemaOverload.cpp
+++ b/lib/Sema/SemaOverload.cpp
@@ -12,6 +12,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "Sema.h"
+#include "Lookup.h"
 #include "clang/Basic/Diagnostic.h"
 #include "clang/Lex/Preprocessor.h"
 #include "clang/AST/ASTContext.h"