CallInfo.from_call cuts off traceback for exceptions

[blueyed]

Code:

pytest/src/_pytest/runner.py

Lines 228 to 236 in cbc39dd

	try:
	result = func()
	except: # noqa
	excinfo = ExceptionInfo.from_current()
	if reraise is not None and excinfo.errisinstance(reraise):
	raise
	result = None
	stop = time()
	return cls(start=start, stop=stop, when=when, result=result, excinfo=excinfo)

It would be good if exceptions being caught/handled there would still have the full traceback.

With Python 3.7 at least we could use types.TracebackType, and create entries based on the frame stack there then.

[blueyed]

See blueyed#20 - testing/code/test_excinfo.py needs quite some adjustments, so I'd be happy about feedback.

Edit: changed to use an explicit merge_frame argument for/with from_call then.