[clang-tidy] Move IncludeSorter.* and IncludeInserter.* to clang-tidy/utils/

This is better structurally and it also fixes a linker error in the configure
build.

llvm-svn: 245052
diff --git a/clang-tools-extra/unittests/clang-tidy/IncludeInserterTest.cpp b/clang-tools-extra/unittests/clang-tidy/IncludeInserterTest.cpp
index dec830d..eb558300 100644
--- a/clang-tools-extra/unittests/clang-tidy/IncludeInserterTest.cpp
+++ b/clang-tools-extra/unittests/clang-tidy/IncludeInserterTest.cpp
@@ -7,7 +7,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "../clang-tidy/IncludeInserter.h"
+#include "../clang-tidy/utils/IncludeInserter.h"
 #include "clang/Lex/Preprocessor.h"
 #include "clang/Frontend/CompilerInstance.h"
 #include "ClangTidyTest.h"