Issue #259: fix `ProjectDefinition >> classesForPlatform` and use it `#testSuite` THis allows packages to specify testcases valid for some platform only. This is normally not needed but sometimes the testcase uses a class that is platform specific and this will cause package validation error upon commit.

     1

LIBRARY libbasic

     2

DESCRIPTION     'Smalltalk/X Basic classes'

     3

VERSION         3.5

     4

CODE            EXECUTE READ 

     5

DATA            READ WRITE

     6

SECTIONS

     7

    INITCODE    READ EXECUTE 

     8

    INITDATA    READ WRITE 

     9

EXPORTS 

    10

    _libbasic_Init