Fix for bug 1437102 Recently we turned off fast path IPC processiong for T2 to fix an other bug. With that we are exectuing non fast path code which was not being used for a long time even in SQ. As some changes were made to IPC layer, changes to this path were missed. So any ESP plan in T2 is hanging in non fast path because we are using BAWAITIOX instead of thread specific BAWAITIOXTS. This was not caught because none of T2 tests have any ESP plan queries.
SQL support for phandle verifier, etc. Changes to use phandle verifier from foundation to distinguish processes when pids are recycled. Remove some workarounds which attempted to use process creation timestamps to do the same thing. Also, use msg_mon_node_down2 to log the reason why the node is brought down. And removed some unneeded special case code to free the shared segment semaphore at the startup of mxssmp.