Compat with multiple browser-compat values

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Compat macros fails because it gets query of type Array<string>, not string.

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[ 'javascript.statements.import', 'javascript.statements.export' ]
/uk/docs/Web/JavaScript/Guide/Modules
1 failed Compat macros, the last expression was: {{Compat}}, message: query.split is not a function or its return value is not iterable

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