Split thread test into two parts. Mark one as XFAIL with ASAN.

The second part of the test checks that std::terminate is called when a running
thread is move assigned to. Calling std::terminate prevents some of the destructors
to be called and ASAN fires on this.



git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@222076 91177308-0d34-0410-b5e6-96231b3b80d8

test/thread/thread.threads/thread.thread.class/thread.thread.assign/move.pass.cpp

@@ -16,8 +16,6 @@
 // thread& operator=(thread&& t);
 
 #include <thread>
-#include <new>
-#include <cstdlib>
 #include <cassert>
 
 class G
@@ -31,13 +29,6 @@ public:
     G(const G& g) : alive_(g.alive_) {++n_alive;}
     ~G() {alive_ = 0; --n_alive;}
 
-    void operator()()
-    {
-        assert(alive_ == 1);
-        assert(n_alive >= 1);
-        op_run = true;
-    }
-
     void operator()(int i, double j)
     {
         assert(alive_ == 1);
@@ -51,15 +42,9 @@ public:
 int G::n_alive = 0;
 bool G::op_run = false;
 
-void f1()
-{
-    std::exit(0);
-}
-
 int main()
 {
 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
-    std::set_terminate(f1);
     {
         assert(G::n_alive == 0);
         assert(!G::op_run);
@@ -73,12 +58,5 @@ int main()
         assert(G::n_alive == 0);
         assert(G::op_run);
     }
-    {
-        std::thread t0(G(), 5, 5.5);
-        std::thread::id id = t0.get_id();
-        std::thread t1;
-        t0 = std::move(t1);
-        assert(false);
-    }
 #endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
 }