Add improved DeclarationV2 API, migrate several rules #1750

Job	Run time
macos (12, latest-stable)	7m 11s
command-line-tool (13, latest-stable)	53s
linux (swift:5.3, focal)	39s
editor-extension (13, latest-stable)	1m 57s
macos (13, latest-stable)	8m 23s
linux (swift:5.10, focal)	5m 18s
macos (latest, latest-stable)	5m 15s
swiftformat-for-xcode (13, latest-stable)	1m 52s
windows (5.8-RELEASE)	2m 56s
windows (5.10.1-RELEASE)	3m 7s
	37m 31s

Provide feedback