Testing on Android devices mixes stderr into stdout. After https://crrev.com/c/8501170, tests passing --stack-size above V8_DEFAULT_STACK_SIZE_KB (such as webkit/run-json-stringify) imply --test-only-unsafe and print "V8 is running with an unsupported configuration..." to stderr. Ignore these lines in ExpectedOutProc just like message.OutProc already does (see https://crrev.com/c/7653797). TAG=agy R=machenbach@chromium.org Bug: 571444688 Change-Id: I44797c615e096f6dc6e1688d144ec05b9cc4b80a Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/8545879 Reviewed-by: Michael Achenbach <machenbach@chromium.org> Commit-Queue: Clemens Backes <clemensb@chromium.org> Cr-Commit-Position: refs/heads/main@{#110649}