Compilation fix

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@53222 91177308-0d34-0410-b5e6-96231b3b80d8

lib/AST/ExprConstant.cpp

@@ -14,7 +14,7 @@
 #include "clang/AST/APValue.h"
 #include "clang/AST/ASTContext.h"
 #include "clang/AST/Expr.h"
-#include "clang/AST/STmtVisitor.h"
+#include "clang/AST/StmtVisitor.h"
 #include "clang/Basic/TargetInfo.h"
 #include "llvm/Support/Compiler.h"