LIR panic on type error in `expect`

[niclas-ahden]

roc test panics on a type error in expect:

foo : U64 -> U64
foo = |x| x

expect foo(Dynamite) == 5 # boom!

main! = |_| { Ok({}) }

It doesn't seem to matter what the type error is (tested Dynamite, "bar" etc. with the same result).

Output:

$ roc test --no-cache type_error_expect.roc
thread 265290807 panic: LIR/codegen invariant violated: exprLayout called on non-value expression runtime_error
???:?:?: 0x10967b2ef in ??? (roc)
???:?:?: 0x109837c97 in ??? (roc)
???:?:?: 0x1095f2633 in ??? (roc)
???:?:?: 0x1093db47f in ??? (roc)
???:?:?: 0x109188303 in ??? (roc)
???:?:?: 0x108ed6d4b in ??? (roc)
???:?:?: 0x108e79393 in ??? (roc)
???:?:?: 0x108e66923 in ??? (roc)
???:?:?: 0x108f29b3f in ??? (roc)
???:?:?: 0x108f2b837 in ??? (roc)
???:?:?: 0x108f2bd97 in ??? (roc)
???:?:?: 0x183379d53 in ??? (???)
???:?:?: 0x0 in ??? (???)
zsh: abort      roc test --no-cache type_error_expect.roc

Moving the type error into main! works as intended:

foo : U64 -> U64
foo = |x| x

main! = |_| {
  _ = foo(Dynamite)
  Ok({})
}

$ roc test --no-cache type_error_expect.roc
-- TYPE MISMATCH ---------------------------------

The first argument being passed to this function has the wrong type:
  ┌─ /Users/niclas/dev/roc-maybe-zig/type_error_expect.roc:6:7
  │
6 │   _ = foo(Dynamite)
  │           ^^^^^^^^

This argument has the type:

    [Dynamite, ..]

But foo needs the first argument to be:

    U64

And the same output for a roc run (not roc test).

Tested on macOS 26.3.1 aarch64 using Roc built from commit d38fd084fbe36864c7b336f3b92a9214b6f0e4e7.