Support completions inside object spread

[anthony-c-martin]

This would allow completions for an outer object type within a spread - e.g. foo and bar should be offered in the following cursor location:

type myType = {
  foo: string
  bar: string
}
output foo myType = {
  ...{ | }
  bar: 'bar'
}

Raised by @slavizh on the community call.

Microsoft Reviewers: Open in CodeFlow

[github-actions]

Test this change out locally with the following install scripts (Action run 8941982183)

VSCode

• Mac/Linux

  bash <(curl -Ls https://aka.ms/bicep/nightly-vsix.sh) --run-id 8941982183

• Windows

  iex "& { $(irm https://aka.ms/bicep/nightly-vsix.ps1) } -RunId 8941982183"

Azure CLI

• Mac/Linux

  bash <(curl -Ls https://aka.ms/bicep/nightly-cli.sh) --run-id 8941982183

• Windows

  iex "& { $(irm https://aka.ms/bicep/nightly-cli.ps1) } -RunId 8941982183"

[github-actions]

Test Results

    65 files   -     34      65 suites   - 34   22m 20s ⏱️ - 10m 6s
10 877 tests  -     19  10 876 ✅  -     19  1 💤 ±0  0 ❌ ±0 
25 632 runs   - 12 836  25 630 ✅  - 12 835  2 💤  - 1  0 ❌ ±0 

Results for commit 91fe821. ± Comparison against base commit cfc27df.

♻️ This comment has been updated with latest results.

[anthony-c-martin]

These changes are not strictly necessary for spread completions generally, but I noticed we're missing completions for single-line objects - e.g. the following scenarios:

foo = { | }
foo = {|}
foo = {|
  bar: 'bar'
}
foo = {bar:'bar',|}