compile: support `-d no_gc_threads` (#331) #1005

Job	Run time
code-formatting	29s
ubuntu-latest-bootstrap	3m 6s
ubuntu-latest-extra-command	1m 8s
ubuntu-latest-build	3m 22s
ubuntu-latest-vab-can-live-anywhere	1m 6s
v-compiles-os-android	46s
windows-latest-build	5m 0s
	14m 57s

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