test: allow adding known-globals through ENV

test: allow adding known-globals through ENV · nodejs/node@48943e9

Original file line number	Diff line number	Diff line change
`@@ -362,6 +362,11 @@ if (global.Symbol) {`
`362`	`362`	`knownGlobals.push(Symbol);`
`363`	`363`	`}`
`364`	`364`
	`365`	`+if (process.env.NODE_TEST_KNOWN_GLOBALS) {`
	`366`	`+const knownFromEnv = process.env.NODE_TEST_KNOWN_GLOBALS.split(',');`
	`367`	`+allowGlobals(...knownFromEnv);`
	`368`	`+}`
	`369`	`+`
`365`	`370`	`function allowGlobals(...whitelist) {`
`366`	`371`	`knownGlobals = knownGlobals.concat(whitelist);`
`367`	`372`	`}`