[PATCH]: some testsuite fixes

[Nathan Sidwell]

Hi,
here are a set of cleanups for the testsuite.  Mostly they are tests
where we've forgotton to check some enabling variable.  The others are

* gdb.trace/collection.exp: Some of the checking regexps were not robust
enough for slightly different output.  Also, there's a race condition
with the use of gdb_run_cmd.  We need to wait until the breakpoint in 'begin'
is reached before trying to send the 'tstart' command.

* gdb.trace/tfind.exp:  There's a comment asking why the testcase is
optimized.  With gcc 3.4, if optimization is enabled, the leaf function is
inlined and the test fails.  So I think optimization is not a good idea.

ok?

nathan
-- 
Nathan Sidwell    ::   http://www.codesourcery.com   ::     CodeSourcery LLC
nathan@codesourcery.com    ::     http://www.planetfall.pwp.blueyonder.co.uk

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