[Chicken-janitors] #1121: Allow functor arguments to be optional

[Chicken Trac]

#1121: Allow functor arguments to be optional
-------------------------+--------------------------------------------------
 Reporter:  felix        |       Owner:         
     Type:  enhancement  |      Status:  new    
 Priority:  minor        |   Milestone:  someday
Component:  expander     |     Version:  4.9.x  
 Keywords:  functors     |  
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 This patch allows functor arguments to be optional, allowing to provide a
 default module name to be used if the instantiation leaves out the
 argument.

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Ticket URL: <http://bugs.call-cc.org/ticket/1121>
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