Changes

traceevent: fix a stack too deep exception

Exit events, like in the Trace Compass traces, have no name. The exit
was added at the bottom of the stack so the actual event was never
popped. When the event is an unnamed exit event, then it pops the last
event in the stack.

Change-Id: I96f2d9c6637c7d4cc8210e30a3b3bc8215ed9856
Signed-off-by: Geneviève Bastien <gbastien+lttng@versatic.net>
Reviewed-on: https://git.eclipse.org/r/153802
Tested-by: Trace Compass Bot <tracecompass-bot@eclipse.org>
Reviewed-by: Matthew Khouzam <matthew.khouzam@ericsson.com>
Tested-by: Matthew Khouzam <matthew.khouzam@ericsson.com>

callgraph: Remove the CallGraphGroupBy class

It is completing replaced by the WeightedTreeGroupBy class.

Also update a few javadocs to remove errors when creating the javadoc

Change-Id: I0128bfd48b50a8b171ccfcb22220f6e254d024b2
Signed-off-by: Geneviève Bastien <gbastien+lttng@versatic.net>
Reviewed-on: https://git.eclipse.org/r/155508
Tested-by: Trace Compass Bot <tracecompass-bot@eclipse.org>
Reviewed-by: Matthew Khouzam <matthew.khouzam@ericsson.com>
Tested-by: Matthew Khouzam <matthew.khouzam@ericsson.com>

cleanup: Move the contextswitch plugins to the kernel

The only view in this plugin is kernel related, so it is moved into the
incubator's kernel plugin

Change-Id: I11f967d96308f9e44d748e53aff48bbc7e67ba5c
Signed-off-by: Geneviève Bastien <gbastien+lttng@versatic.net>
Reviewed-on: https://git.eclipse.org/r/152529
Tested-by: Trace Compass Bot <tracecompass-bot@eclipse.org>
Reviewed-by: Matthew Khouzam <matthew.khouzam@ericsson.com>