chore: add test for missing lambda closure environment (#2120) (#4212)

# Description

This issue has been resolved, presumably by
github.com//pull/2457, but this test no longer appears to
be in the repo so re-adding it to prevent regressions.

## Problem\*

Resolves #2120 

## Summary\*

This just adds a test.

## Additional Context



## Documentation\*

Check one:
- [x] No documentation needed.
- [ ] Documentation included in this PR.
- [ ] **[Exceptional Case]** Documentation to be submitted in a separate
PR.

# PR Checklist\*

- [x] I have tested the changes locally.
- [x] I have formatted the changes with [Prettier](https://prettier.io/)
and/or `cargo fmt` on default settings.

test_programs/execution_success/missing_closure_env/Nargo.toml

@@ -0,0 +1,7 @@
+[package]
+name = "missing_closure_env"
+type = "bin"
+authors = [""]
+compiler_version = ">=0.23.0"
+
+[dependencies]

test_programs/execution_success/missing_closure_env/Prover.toml

@@ -0,0 +1 @@
+x = 42

test_programs/execution_success/missing_closure_env/src/main.nr

@@ -0,0 +1,16 @@
+fn main(x: Field) {
+    let x1 = &mut 42;
+    let set_x1 = |y| { *x1 = y; };
+
+    assert(*x1 == 42);
+    set_x1(44);
+    assert(*x1 == 44);
+    set_x1(*x1);
+    assert(*x1 == 44);
+    assert(x == 42);
+}
+
+#[test]
+fn test_main() {
+    main(42);
+}