Changes

traceEvent: Pop up to last function in stack with name

When a stack has elements of the same name and there is an end event, it
should pop up to the deepest element in the stack with that name, not
the first one.

Change-Id: Id33a37bcb4719d3b2dd32189454ffd3b6a8ca6ae
Signed-off-by: Geneviève Bastien <gbastien+lttng@versatic.net>
Reviewed-on: https://git.eclipse.org/r/c/tracecompass.incubator/org.eclipse.tracecompass.incubator/+/166756
Tested-by: Trace Compass Bot <tracecompass-bot@eclipse.org>
Tested-by: Matthew Khouzam <matthew.khouzam@ericsson.com>
Reviewed-by: Matthew Khouzam <matthew.khouzam@ericsson.com>