Extend test timeout for allocation*.js and array_slice.js which can run longer on busy or low-resource test VMs.

[dilijev]

We've observed them run for around 120 seconds; increasing the timeout to 300 seconds (5 minutes) should more than account for this.

Fixes #1406
Fixes #1417

[dilijev]

FYI @ianwjhalliday

[dilijev]

@dotnet-bot test Windows x86_test please

[obastemur]

@dilijev

We've observed them run for around 120 seconds; increasing the timeout to 300 seconds (5 minutes) should more than account for this.

I'm confused with this and your previous comments on #1413

If we are going up to 300.. Why don't we mark them as slow running test instead?

[dilijev]

@obastemur primarily because there is a lack of consensus on moving them to slow-running tests. We need to fix what's broken. If we decide to move them to slow, we can do that later.

Also even if we mark them as slow, they still need to have a large enough timeout. Slow is just a test run configuration, and doesn't exclude the tests from the timeout.

Also the reason I picked 300 is because it is long enough to solve the problems and it matches the other non-default timeouts set for long-running tests:

git grep "<timeout>" *.xml | grep -v rltimeout
test/Array/rlexe.xml:284:      <timeout>300</timeout>
test/DynamicCode/rlexe.xml:15:      <timeout>300</timeout>
test/Error/rlexe.xml:131:      <timeout>300</timeout>
test/JSON/rlexe.xml:31:      <timeout>300</timeout>
test/Operators/rlexe.xml:139:      <timeout>300</timeout>
test/Optimizer/rlexe.xml:1203:      <timeout>300</timeout>
test/Optimizer/rlexe.xml:1212:      <timeout>300</timeout>
test/Optimizer/rlexe.xml:1221:      <timeout>300</timeout>
test/Optimizer/rlexe.xml:1230:      <timeout>300</timeout>
test/TaggedFloats/rlexe.xml:8:      <timeout>300</timeout>
test/es5/rlexe.xml:142:      <timeout>900</timeout>
test/es6/rlexe.xml:644:      <timeout>300</timeout>
test/inlining/rlexe.xml:43:      <timeout>300</timeout>
test/typedarray/rlexe.xml:210:      <timeout>300</timeout>
test/typedarray/rlexe.xml:217:      <timeout>300</timeout>

[obastemur]

LGTM

[dilijev]

Thanks @obastemur. I'm merging this in and hopefully this will unblock all of our PRs and other affected build configurations.