Add two tests

[c410-f3r]

Related to #116864 and #116749 .

[rustbot]

r? @TaKO8Ki

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[TaKO8Ki]

Could you fix CI errors?

[c410-f3r]

WARN rustc_trait_selection::solve::eval_ctxt unstable result: unstable certainty

Solver entered in a loop but funny enough, this behavior didn't happen locally.

[rust-log-analyzer]

The job x86_64-gnu-llvm-15 failed! Check out the build log: (web) (plain)

Click to see the possible cause of the failure (guessed by this bot)

GITHUB_ENV=/home/runner/work/_temp/_runner_file_commands/set_env_53cd3f56-4591-4e01-ae96-a00bf8297a3f
GITHUB_EVENT_NAME=pull_request
GITHUB_EVENT_PATH=/home/runner/work/_temp/_github_workflow/event.json
GITHUB_GRAPHQL_URL=https://api.github.com/graphql
GITHUB_HEAD_REF=foooooooooo
GITHUB_JOB=pr
GITHUB_PATH=/home/runner/work/_temp/_runner_file_commands/add_path_53cd3f56-4591-4e01-ae96-a00bf8297a3f
GITHUB_REF=refs/pull/117792/merge
GITHUB_REF_NAME=117792/merge
GITHUB_REF_PROTECTED=false
---
failures:

---- [ui] tests/ui/associated-types/issue-116864.rs#next stdout ----

error in revision `next`: compiler output got truncated, cannot compare with reference file
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/associated-types/issue-116864.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--cfg" "next" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/associated-types/issue-116864.next" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/associated-types/issue-116864.next/auxiliary" "--edition=2021" "-Ztrait-solver=next"
--- stderr -------------------------------
<<<<<< TRUNCATED, SHOWING THE FIRST 528857 BYTES >>>>>>


WARN rustc_trait_selection::solve::eval_ctxt unstable result: unstable certainty

[c410-f3r]

The new solver is still experimental but it probably doesn't hurt to get some attention.

Kindly pinging @lcnr

[c410-f3r]

Thank you @lcnr !

It is always nice to have more tests but at least for now, I will close this PR.