[PATCH][testsuite] Mark as UNSUPPORTED tests that don't fit into tiny memory model

[Rainer Orth]

Hi Kyrill,

> Sorry about this.
> I had grepped for includes of gcc-defs.exp in lib*, which missed boehm-gc.
> Thanks for fixing this, I was away earlier this week.
>
> I'll make sure to check the libraries explicitly if I do any testsuite
> refactoring work in the future

great, thanks.  I know all too well that it needs a large amount of this
do get away from the current copy-and-paste programming pervasive
throughout the testsuite.

	Rainer

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Rainer Orth, Center for Biotechnology, Bielefeld University