Repro for radius issue

[anthony-c-martin]

I couldn't repro the problem reported under #13423 (comment), but figured I'd check in the work anyway, to give more coverage of Radius scenarios.

[github-actions]

Test this change out locally with the following install scripts (Action run 8514313591)

VSCode

• Mac/Linux

  bash <(curl -Ls https://aka.ms/bicep/nightly-vsix.sh) --run-id 8514313591

• Windows

  iex "& { $(irm https://aka.ms/bicep/nightly-vsix.ps1) } -RunId 8514313591"

Azure CLI

• Mac/Linux

  bash <(curl -Ls https://aka.ms/bicep/nightly-cli.sh) --run-id 8514313591

• Windows

  iex "& { $(irm https://aka.ms/bicep/nightly-cli.ps1) } -RunId 8514313591"

[github-actions]

Test Results

    66 files   -     33      66 suites   - 33   22m 30s ⏱️ - 16m 41s
10 724 tests  -     19  10 722 ✅  -     19  2 💤 ±0  0 ❌ ±0 
25 344 runs   - 12 665  25 340 ✅  - 12 663  4 💤  - 2  0 ❌ ±0 

Results for commit a86ad46. ± Comparison against base commit dba7d80.