Update unittests for include change.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159724 91177308-0d34-0410-b5e6-96231b3b80d8

unittests/Frontend/FrontendActionTest.cpp

@@ -8,6 +8,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "clang/AST/RecursiveASTVisitor.h"
+#include "clang/AST/ASTContext.h"
 #include "clang/AST/ASTConsumer.h"
 #include "clang/Frontend/CompilerInstance.h"
 #include "clang/Frontend/CompilerInvocation.h"

unittests/Tooling/RefactoringTest.cpp

@@ -8,6 +8,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "RewriterTestContext.h"
+#include "clang/AST/ASTContext.h"
 #include "clang/AST/ASTConsumer.h"
 #include "clang/AST/DeclCXX.h"
 #include "clang/AST/DeclGroup.h"

unittests/Tooling/TestVisitor.h

@@ -14,6 +14,7 @@
 #ifndef LLVM_CLANG_TEST_VISITOR_H
 #define LLVM_CLANG_TEST_VISITOR_H
 
+#include "clang/AST/ASTContext.h"
 #include "clang/AST/ASTConsumer.h"
 #include "clang/AST/RecursiveASTVisitor.h"
 #include "clang/Frontend/FrontendAction.h"