[OE-core] [PATCH] oeqa: enable testresults.json for testexport

[Richard Purdie]

On Wed, 2020-03-11 at 17:37 +0100, Stefan Kral wrote:
> Add the option --json-result-dir to oeqa core context to enable
> testresults.json creation for test runs via testexport.
> 
> Eg. oe-test runtime --json-result-dir .
> 
> Signed-off-by: Stefan Kral <sk at typedivision.de>

Out of interest are you actively using testexport? I've been wondering
if we should remove that support as it does complicate the code a lot
and ironically, isn't well tested.

Cheers,

Richard