Proposal: winetest 'context'

[Mark Jansen]

Hello,

Often when testing something, helper functions are introduced that are
called with different data (for example when iterating over tables).

Attached patch (winetest_set_context.diff) is a proposal that allows
tests to specify a 'context', that will be printed in the failure
message.
This way, the actual test code does not have to prefix every case with
a trace, or include the data in every test macro.
The patch is written so that tests do not have to use this mechanism,
so there is no need to convert all tests at once.
Second attachment (winetest_ctx_example.diff) shows how an existing
test could be converted to use this new technique.

Regards,

Mark Jansen