replace LeakSanitizerIsTurnedOffForTheCurrentProcess with...

replace LeakSanitizerIsTurnedOffForTheCurrentProcess with __lsan_is_turned_off, but this time hide it under __has_feature(address_sanitizer); also include <sanitizer/lsan_interface.h>

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@199303 91177308-0d34-0410-b5e6-96231b3b80d8

utils/TableGen/TableGen.cpp

@@ -264,9 +264,11 @@ int main(int argc, char **argv) {
   return TableGenMain(argv[0], &ClangTableGenMain);
 }
 
-extern "C" {
+#ifdef __has_feature
+#if __has_feature(address_sanitizer)
+#include <sanitizer/lsan_interface.h>
 // Disable LeakSanitizer for this binary as it has too many leaks that are not
-// very interesting to fix. LeakSanitizerIsTurnedOffForTheCurrentProcess is
-// explained in compiler-rt/include/sanitizer/lsan_interface.h
-int LeakSanitizerIsTurnedOffForTheCurrentProcess() { return 1; }
-} // extern "C"
+// very interesting to fix. See compiler-rt/include/sanitizer/lsan_interface.h .
+int __lsan_is_turned_off() { return 1; }
+#endif  // __has_feature(address_sanitizer)
+#endif  // defined(__has_feature)