Giving Perm-typed expressions higher priority #855
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…the default for anything ambiguous
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As a result, the default for any ambiguously typed expression that could be either Int or Perm is always Perm. That's what we want, because the primitive expression that causes the ambiguity, division expressions, can be forced to be Int-typed (by using operator
\) but cannot be forced to be Perm-typed.This fixes issue #745.