Test

fix: strictly check operator overload ambiguity #4729

Job	Run time
Check	5s
Runtimes	31s
Features	23s
Bootstrap (debug)	3m 46s
Loader	21s
Compiler (ubuntu, node current)	1m 48s
Bootstrap (release)	3m 29s
Compiler (ubuntu, node lts/*)	1m 44s
Coverage	3m 16s
Compiler (macos, node current)	1m 55s
Compiler (macos, node lts/*)	1m 53s
Compiler (windows, node current)	1m 46s
Compiler (windows, node lts/*)	1m 44s
	22m 41s

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