[PATCH 02/12] tools build: Fix test-clang.cpp with Clang 8+

[Arnaldo Carvalho de Melo]

From: "Maciej S. Szmigiero" <mail@xxxxxxxxxxxxxxxxxxxxx>

LLVM rL344140 (included in Clang 8+) moved VFS from Clang to LLVM, so
paths to its include files have changed.

This broke the Clang test in tools/build - let's fix it.

Signed-off-by: Maciej S. Szmigiero <mail@xxxxxxxxxxxxxxxxxxxxx>
Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>
Cc: Denis Pronin <dannftk@xxxxxxxxx>
Cc: Dennis Schridde <devurandom@xxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Mark Rutland <mark.rutland@xxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Naohiro Aota <naota@xxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: clang-built-linux@xxxxxxxxxxxxxxxx
Link: http://lore.kernel.org/lkml/20191228171314.946469-1-mail@xxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/build/feature/test-clang.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tools/build/feature/test-clang.cpp b/tools/build/feature/test-clang.cpp
index a2b3f092d2f0..7d87075cd1c5 100644
--- a/tools/build/feature/test-clang.cpp
+++ b/tools/build/feature/test-clang.cpp
@@ -1,9 +1,15 @@
 // SPDX-License-Identifier: GPL-2.0
+#include "clang/Basic/Version.h"
+#if CLANG_VERSION_MAJOR < 8
 #include "clang/Basic/VirtualFileSystem.h"
+#endif
 #include "clang/Driver/Driver.h"
 #include "clang/Frontend/TextDiagnosticPrinter.h"
 #include "llvm/ADT/IntrusiveRefCntPtr.h"
 #include "llvm/Support/ManagedStatic.h"
+#if CLANG_VERSION_MAJOR >= 8
+#include "llvm/Support/VirtualFileSystem.h"
+#endif
 #include "llvm/Support/raw_ostream.h"
 
 using namespace clang;
-- 
2.21.1