trans.icl: improving sjaaks changes that yielded revision 1.17
parse.icl: bugfix: The following program led into "could not determine the type of this record"

module t5

:: R1 = { f :: Int }
:: R2 = { f :: Int }
:: R3 = { g :: R1 }

g x = { x & g.R1.f = 1 }

character

    Check Error [case_bug.icl,18,f]:"_" illegal combination of patterns
    f t = case t of {(a,2) -> 1;	_ | False -> 2;	(a,b) -> 3;};
- typesupport.icl: small typo
- trans.icl: small optimisation

not whether an argument of a constructor is in normal form

case [a] of { [b]->(b,b) }

transformed to

  let b=a in (b,b)

now it transfroms to

  (a,a)

before
  case x of { 1->1; _ -> case C of { A -> 2 }}
transformed to
  case x of { 1->1; _ -> neverMatchingCase }
now it transforms to
  case x of { 1->1;}

completing Sjaak's changes in module trans caused by exchanging the transform and convertcases phases

 - dictionary arguments added properly
 - coercion of function types

function determinePriority added