Stop closing terminal fd from ProcessMonitor.  It is owned by ConnectionFileDescriptor.

llvm-svn: 190733
diff --git a/lldb/source/Plugins/Process/Linux/ProcessMonitor.cpp b/lldb/source/Plugins/Process/Linux/ProcessMonitor.cpp
index 2e6c55f..3d17518 100644
--- a/lldb/source/Plugins/Process/Linux/ProcessMonitor.cpp
+++ b/lldb/source/Plugins/Process/Linux/ProcessMonitor.cpp
@@ -2187,9 +2187,12 @@
 {
     StopMonitoringChildProcess();
     StopOpThread();
-    CloseFD(m_terminal_fd);
     CloseFD(m_client_fd);
     CloseFD(m_server_fd);
+    // Note: ProcessPOSIX passes the m_terminal_fd file descriptor to
+    // Process::SetSTDIOFileDescriptor, which in turn transfers ownership of
+    // the descriptor to a ConnectionFileDescriptor object.  Consequently
+    // even though still has the file descriptor, we shouldn't close it here.
 }
 
 void