Test fix only: even less reliance on timing in test portOs.
The commit made an attempt to accommodate Windows sluggishness in the port test but it failed.  Here's another.
@@ -1365,8 +1365,14 @@ U_PORT_TEST_FUNCTION("[port]", "portOs")
uPortTaskBlock(200);
uPortLog("U_PORT_TEST: unlocking mutex, allowing task to execute\n");
U_PORT_TEST_ASSERT(uPortMutexUnlock(gMutexHandle) == 0);;
+
+#ifdef U_PORT_TEST_CHECK_TIME_TAKEN
// Pause to let the task print its opening messages
uPortTaskBlock(1200);
+#else
+ // Some platforms (e.g. Windows) can be a little slow at this
+ uPortTaskBlock(10000);
+#endif
uPortLog("U_PORT_TEST: trying to lock the mutex, should fail...\n");
U_PORT_TEST_ASSERT(uPortMutexTryLock(gMutexHandle, 10) != 0);
