Only allow $ as prefix operator in export and import and do not look across newlines #11495
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Fix up #11338
@JeffBezanson The test cases added should work now.
Another difference caused by this PR is that
using &a
will be parsed as(:call :* (:using :&), :a)
instead of a parse error now. This is the same behavior before #11338, has always been the case forusing -a
, and will be caught by further lowering so it shouldn't be a problem. (Althoughexpand
doesn't complain about it and I'm not sure how to add a test for that...)