[PATCH] Fix more cases of improper test names

[Luis Machado]

I noticed more occurrences of improper test names. The rather 
mechanical, tedious and large patch below addresses, hopefully, most of 
the leftover cases.

As usual, another pair of eyes is welcome to check if i missed something 
or did an invalid substitution. I anticipate it is going to be equally 
tedious to review this. :-)

This patch also fixes the prepare_for_testing calls to pass proper test 
names.

Also, since it is quite a big patch, gdb-patches@... rejected the 
message (more than 400K). Not ideal, but a tarball is attached.

Ok?
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