Fix correspondence between location/c and Location in typed/racket #1414
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joergen7
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Checklist
See also: Issue #1415
In (untyped) racket, the XML collection uses a
sourcestruct whose fieldsstartandstopfollow the contractlocation/c. Thelocation/ccontract is defined as follows:However, in typed/racket the aforementioned fields are typed as
Locationwhich represents only the struct but neither symbols nor false.This pull request extends the typing of
source'sstartandstopto entail both symbols and false typing them as