Give a lot more timing latitude to some of the timing tests. Busy buildbots are hitting the timing limits too often.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@174539 91177308-0d34-0410-b5e6-96231b3b80d8

test/thread/thread.mutex/thread.lock/thread.lock.unique/thread.lock.unique.cons/mutex_duration.pass.cpp

@@ -34,7 +34,7 @@ void f1()
     assert(lk.owns_lock() == true);
     time_point t1 = Clock::now();
     ns d = t1 - t0 - ms(250);
-    assert(d < ns(5000000));  // within 5ms
+    assert(d < ms(50));  // within 50ms
 }
 
 void f2()
@@ -44,7 +44,7 @@ void f2()
     assert(lk.owns_lock() == false);
     time_point t1 = Clock::now();
     ns d = t1 - t0 - ms(250);
-    assert(d < ns(5000000));  // within 5ms
+    assert(d < ms(50));  // within 50ms
 }
 
 int main()

test/thread/thread.mutex/thread.lock/thread.lock.unique/thread.lock.unique.locking/lock.pass.cpp

@@ -34,7 +34,7 @@ void f()
     time_point t1 = Clock::now();
     assert(lk.owns_lock() == true);
     ns d = t1 - t0 - ms(250);
-    assert(d < ns(2500000));  // within 2.5ms
+    assert(d < ms(25));  // within 25ms
     try
     {
         lk.lock();

test/thread/thread.mutex/thread.mutex.requirements/thread.timedmutex.requirements/thread.timedmutex.class/try_lock_until.pass.cpp

@@ -34,7 +34,7 @@ void f1()
     time_point t1 = Clock::now();
     m.unlock();
     ns d = t1 - t0 - ms(250);
-    assert(d < ns(5000000));  // within 5ms
+    assert(d < ms(50));  // within 50ms
 }
 
 void f2()
@@ -43,7 +43,7 @@ void f2()
     assert(m.try_lock_until(Clock::now() + ms(250)) == false);
     time_point t1 = Clock::now();
     ns d = t1 - t0 - ms(250);
-    assert(d < ns(5000000));  // within 5ms
+    assert(d < ms(50));  // within 50ms
 }
 
 int main()

test/thread/thread.mutex/thread.mutex.requirements/thread.timedmutex.requirements/thread.timedmutex.recursive/try_lock_until.pass.cpp

@@ -36,7 +36,7 @@ void f1()
     m.unlock();
     m.unlock();
     ns d = t1 - t0 - ms(250);
-    assert(d < ns(5000000));  // within 5ms
+    assert(d < ms(50));  // within 50ms
 }
 
 void f2()
@@ -45,7 +45,7 @@ void f2()
     assert(m.try_lock_until(Clock::now() + ms(250)) == false);
     time_point t1 = Clock::now();
     ns d = t1 - t0 - ms(250);
-    assert(d < ns(5000000));  // within 5ms
+    assert(d < ms(50));  // within 50ms
 }
 
 int main()