C API functions must be able to see their extern "C" definitions, or it will be impossible to call them from C.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138022 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/Analysis.cpp b/lib/Analysis/Analysis.cpp
index 2e28e41..0ba6af9 100644
--- a/lib/Analysis/Analysis.cpp
+++ b/lib/Analysis/Analysis.cpp
@@ -8,6 +8,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm-c/Analysis.h"
+#include "llvm-c/Initialization.h"
 #include "llvm/InitializePasses.h"
 #include "llvm/Analysis/Verifier.h"
 #include <cstring>