feat(fe): add warning for 'x==y;' statement #6285

Job	Run time
macOS x86_64	8m 1s
macOS AArch64	4m 12s
Linux x86_64	3m 10s
Linux ARM	1m 45s
Linux AArch64	1m 49s
Windows x86	7m 22s
Windows x64	6m 55s
Windows ARM	1m 36s
Windows ARM64	1m 37s
Scoop package	16s
Chocolatey package	15s
MSIX installer	51s
test on Windows	8s
test on macOS 11	5s
test on macOS 12	5s
test on Arch Linux	11s
test on Debian 11 Bullseye	10s
test on Debian 10 Buster	10s
test on Fedora 35	7s
test on Fedora 36	10s
test on Ubuntu 18.04 LTS Bionic	9s
test on Ubuntu 20.04 LTS Focal	7s
npm package	13s
test Chocolatey package	21s
test npm package on Windows with npm	15s
test npm package on Windows with npm (--global)	24s
test npm package on Windows with Yarn	14s
test npm package on macOS 11 with npm	9s
test npm package on macOS 11 with npm (--global)	7s
test npm package on macOS 11 with Yarn	6s
test npm package on macOS 12 with npm	9s
test npm package on macOS 12 with npm (--global)	6s
test npm package on macOS 12 with Yarn	28s
test npm package on Ubuntu with npm	9s
test npm package on Ubuntu with npm (--global)	6s
test npm package on Ubuntu with Yarn	4s
winget manifests	23s
	42m 25s

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