New LE TEST suboption to inhibit DT MFI for RDz users

Currently the LE TEST runtime parameter is used to trigger Debug Tool testing, both for mainframe interface (MFI) and remote clients like Rational Developer for System z (RDz).

We do not use Debug Tool's MFI. For many years our mainframe developers have used Xpediter for debugging.
Now we are transitioning to RDz as our mainframe debugger of choice. Most, if not all current developers have never seen Debug Tool's mainframe interface.

RDz testing is initiated with the Debug Tool exit routine, EQADxCXT linked into test load modules prior to testing. The RDz client IP Address is added to the &USERID.DBGTOOL.EQAUOPTS dataset to connect the RDz client to the test job on z/OS. The DBGTOOL.EQAUOPTS dataset looks like this:

********************************* Top of Data ************************************
<PGM>*
<TST>TEST(ALL,*,PROMPT,TCPIP&10.32.66.162%8001:*)
******************************** Bottom of Data **********************************

When the RDz client at that IP address is open and the debug daemon listening, a connection is made between the running job and RDz.

For productivity and code integrity reasons, some developers will compile and link their test programs with RDz testing enabled even when they don't necessarily intend to debug using RDz. Should they need to run debug tests, they simply have to open RDz and make sure the daemon is listening.

The problem they run into when they don't intend to run RDz tests with this RDz enabled code, if RDz is not open or the debug daemon is turned off, not listening, but the IP Address in the DBGTOOL.EQAUOPTS dataset is correct, the Debug Tool MFI pops up. As indicated, we do not use Debug Tool MFI for any
mainframe developer testing.

What we'd like to see is a LE TEST suboption to turn off Debug Tool MFI. This way if the
program is fully prepared for RDz testing but the developer does not intend to run RDz, Debug Tool will not start up in the mainframe interface. Set the default to enable Debug Tool MFI so existing DT MFI users are not effected. Allow it to be overridden for RDz only users.