Revert "Fix Clang-tidy modernize-deprecated-headers warnings in remaining files; other minor fixes."

This reverts commit r265454 since it broke the build.  E.g.:

  http://lab.llvm.org:8080/green/job/clang-stage1-cmake-RA-incremental_build/22413/

llvm-svn: 265459

1 files changed, 3 insertions, 9 deletions

diff --git a/llvm/lib/Support/Unix/ThreadLocal.inc b/llvm/lib/Support/Unix/ThreadLocal.inc
index 78c694c908d..31c3f3835b2 100644
--- a/llvm/lib/Support/Unix/ThreadLocal.inc
+++ b/llvm/lib/Support/Unix/ThreadLocal.inc
@@ -19,11 +19,10 @@
 #if defined(HAVE_PTHREAD_H) && defined(HAVE_PTHREAD_GETSPECIFIC)
 
 #include <cassert>
-#include <cstdlib>
 #include <pthread.h>
+#include <stdlib.h>
 
 namespace llvm {
-
 using namespace sys;
 
 ThreadLocalImpl::ThreadLocalImpl() : data() {
@@ -57,19 +56,14 @@ void ThreadLocalImpl::removeInstance() {
   setInstance(nullptr);
 }
 
-} // end namespace llvm
+}
 #else
-
 namespace llvm {
-
 using namespace sys;
-
 ThreadLocalImpl::ThreadLocalImpl() : data() { }
 ThreadLocalImpl::~ThreadLocalImpl() { }
 void ThreadLocalImpl::setInstance(const void* d) { data = const_cast<void*>(d);}
 void *ThreadLocalImpl::getInstance() { return data; }
 void ThreadLocalImpl::removeInstance() { setInstance(0); }
-
-} // end namespace llvm
-
+}
 #endif