chore: implement tree w/o list (#33167) #27031

Job	Run time
ubuntu-22.04 (chromium - Node.js 18)	12m 19s
ubuntu-20.04 (chromium tip-of-tree)	13m 31s
ubuntu-22.04 (firefox - Node.js 18)	24m 36s
ubuntu-22.04 (webkit - Node.js 18)	15m 52s
ubuntu-22.04 (chromium - Node.js 20)	12m 10s
Test Runner (ubuntu-latest, 18, 1, 2)	29m 14s
ubuntu-22.04 (chromium - Node.js 22)	11m 56s
Test Runner (ubuntu-latest, 18, 2, 2)	5m 25s
Test Runner (windows-latest, 18, 1, 2)	40m 39s
Test Runner (windows-latest, 18, 2, 2)	9m 2s
Web Components	2m 2s
Test Runner (macos-latest, 18, 1, 2)	20m 59s
Test Runner (macos-latest, 18, 2, 2)	4m 18s
VSCode Extension	28m 34s
Installation Test ubuntu-latest	11m 11s
Test Runner (ubuntu-latest, 20, 1, 2)	27m 39s
Installation Test macos-latest	9m 22s
Test Runner (ubuntu-latest, 20, 2, 2)	5m 0s
Installation Test windows-latest	19m 36s
Test Runner (ubuntu-latest, 22, 1, 2)	28m 1s
Test Runner (ubuntu-latest, 22, 2, 2)	5m 9s
	5h 36m 35s

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