The following two subtests have timed out in the Valhalla CI:

compiler/valhalla/inlinetypes/TestTearing.java#xcomp-no-stress
compiler/valhalla/inlinetypes/TestTearing.java#no-flattening-di

Both subtests have a default timeout value of 2 minutes/120 seconds
and were executed with a timeoutFactor of 16 for a total
timeout value of 32 minutes. Both tests completed just
over that timeout value. These timeouts occurred on
linux-x64-debug machines which tend to be our fastest
so a longer default timeout is warranted.

Here's a snippet from the TestTearing.java#xcomp-no-stress log file:

elapsed time (seconds): 1948.264

<snip>

----------System.out:(1/52)----------
[17:26:14.657] Timeout signalled after 1920 seconds
----------System.err:(1/15)----------
STATUS:Passed.
----------rerun:(62/10829)*----------

Here's a snippet from the TestTearing.java#no-flattening-di log file:

elapsed time (seconds): 2022.431

<snip>

----------System.out:(2/123)----------
CompileCommand: dontinline *.incrementAndCheck* bool dontinline = true
[17:20:46.196] Timeout signalled after 1920 seconds
----------System.err:(1/15)----------
STATUS:Passed.
----------rerun:(63/10898)*----------