[qmtest] PATCH: Let DejaGNUTest use the host extension for cross-testing

[Mark Mitchell]

Stefan Seefeld wrote:

> This patch makes the DejaGNUTest aware of it by running
> the compiled executable on the target platform. The default
> as set by the CompilerTable resource is 'LocalHost', but
> that can be set to a different host type using the context
> file.

Looks good, thanks!

-- 
Mark Mitchell
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mark at codesourcery.com
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