Otherwise they will get freed again by the MPIR_Comm_free that is called
by CH3's MPID_Finalize.

No reviewer.

[svn-r5355] Added (or moved) MPIU_THREADPRIV_DECL so that the thread-private area is acquired only once within a routine, since the data (pointer to the thread-private area) is fixed during the execution.  This reduces the overhead of the nest increment/decrement, for example

With error checking enabled (and not itself broken) this CS_EXIT resulted
in most of the threads tests failing an assert due to an "unlocked a
not-locked lock" situation in the Nemesis progress engine during a
finalize callback.

Reviewed by gropp@.

We were not zeroing the attribute list for an object at
{comm,win,type}_free time.

Reviewed by balaji@.

[svn-r3456] Getting rid of SVN IDs that are present in 5% of the files and not in the other 95%. This is creating unnecessary conflicts for collaborators who merge from MPICH2.

[svn-r3349] Added the ability to check for handles allocated but not freed; also a number of fixes to plug leaks in handles that this capability exposed

significant additional functionality.  This change contains the infrastructure
for SMP collectives and an implementation of SMP-aware broadcast.

Reviewed by thakur@.

[svn-r3184] Added definitions for THREAD_CS_ENTER/EXIT in the non-threaded mode and added a few FIXMEs and minor text changes (in some cases to conform to the coding standards)

[svn-r3177] Switch to the new macro for the global thread critical section (most of this is an automated change, tested against the MPICH2 test suite)