in "convertCasesOfFunctionsIntoPatterns" and "collectVariables")
 - new switch "SwitchUniquenessBug" in module checksupport
 - several bugfixes

bugfix

    (new module: comparedefimp)
- implemented array patterns. Further work: arrays are in lazy context (should be strict),
    currently only one dimensional arrays
- optimised memory usage for explicit imports

TVI_Atype, AVI_CorrespondenceNumber, PE_ArrayPattern

removed old RWS comments

    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

 - dictionary arguments added properly
 - coercion of function types