tree Fix structurally named map and array creation

[CraigMacomber]

Description

See changeset for details.

Reviewer Guidance

The review process is outlined on this wiki page.

[github-actions]

🔗 No broken links found! ✅

Your attention to detail is admirable.

linkcheck output

> fluidframework-docs@0.25.0 ci:linkcheck /home/runner/work/FluidFramework/FluidFramework/docs
> start-server-and-test ci:start 1313 linkcheck:full

1: starting server using command "npm run ci:start"
and when url "[ 'http://127.0.0.1:1313' ]" is responding with HTTP status code 200
running tests using command "npm run linkcheck:full"


> fluidframework-docs@0.25.0 ci:start
> http-server ./public --port 1313 --silent


> fluidframework-docs@0.25.0 linkcheck:full
> npm run linkcheck:fast -- --external


> fluidframework-docs@0.25.0 linkcheck:fast
> linkcheck http://localhost:1313 --skip-file skipped-urls.txt --external

Crawling...

Stats:
  405650 links
    3151 destination URLs
       2 URLs ignored
       0 warnings
       0 errors

[msfluid-bot]

⯅ @fluid-example/bundle-size-tests: +317 Bytes

Metric Name	Baseline Size	Compare Size	Size Diff
aqueduct.js	460.88 KB	460.92 KB	⯅ +35 Bytes
azureClient.js	559.03 KB	559.08 KB	⯅ +49 Bytes
connectionState.js	680 Bytes	680 Bytes	■ No change
containerRuntime.js	261.68 KB	261.69 KB	⯅ +14 Bytes
fluidFramework.js	401.54 KB	401.59 KB	⯅ +50 Bytes
loader.js	134.17 KB	134.19 KB	⯅ +14 Bytes
map.js	42.43 KB	42.44 KB	⯅ +7 Bytes
matrix.js	146.59 KB	146.6 KB	⯅ +7 Bytes
odspClient.js	526.18 KB	526.23 KB	⯅ +49 Bytes
odspDriver.js	97.8 KB	97.82 KB	⯅ +21 Bytes
odspPrefetchSnapshot.js	42.76 KB	42.78 KB	⯅ +14 Bytes
sharedString.js	163.27 KB	163.28 KB	⯅ +7 Bytes
sharedTree.js	392.01 KB	392.05 KB	⯅ +43 Bytes
Total Size	3.3 MB	3.3 MB	⯅ +317 Bytes

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Baseline commit: 8b46119

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