Add OSEHRA Exceptions for "guarded" functions

Add XINDEX Exceptions for the errors in the VAEE Increment 4 Phase 1
packages that are "guarded" by checking the return of a call to
^%ZOSV("TEST") or $TEXT() function.  These ensure that a routine is
available before attempting to access the code.

OSEHRA-Id: http://issues.osehra.org/browse/VAF-183
Change-Id: I866236f3d4f97b5aca0fba4fc9fe6422f78bb95d
Merge "Add OSEHRA Exceptions for "guarded" functions"