test(tvix/eval): test for catchable in attribute merges r/7181

Relates to b/346.

    $ /git/depot/result/bin/tvix -E '(builtins.tryEval (throw "bob" // { })).success'
    note: while evaluating this Nix code
     --> [code]:1:1
      |
    1 | (builtins.tryEval (throw "bob" // { })).success
      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    note: while evaluating this as native code (force)
     --> [code]:1:1
      |
    1 | (builtins.tryEval (throw "bob" // { })).success
      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    note: while evaluating this as native code (tryEval)
     --> [code]:1:2
      |
    1 | (builtins.tryEval (throw "bob" // { })).success
      |  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    error[E006]: expected value of type 'set', but found a 'internal[catchable]'
     --> [code]:1:20
      |
    1 | (builtins.tryEval (throw "bob" // { })).success
      |                    ^^^^^^^^^^^^^^^^^^

Change-Id: Ib84c4ec6d2612d4f1f6066e66c3dd1bf04369b6e
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10291
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
Autosubmit: Adam Joseph <adam@westernsemico.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/tvix/eval/src/tests/tvix_tests/notyetpassing/eval-okay-catchable-in-update-attrs.nix b/tvix/eval/src/tests/tvix_tests/notyetpassing/eval-okay-catchable-in-update-attrs.nix
new file mode 100644
index 000000000000..38a91690345b
--- /dev/null
+++ b/tvix/eval/src/tests/tvix_tests/notyetpassing/eval-okay-catchable-in-update-attrs.nix
@@ -0,0 +1 @@
+(builtins.tryEval (throw "bob" // { })).success