ecere/com: Solved class registration ordering issues

ecere/com: Solved class registration ordering issues
- Resolved conditional jumps based on uninitialized values reported by Valgrind
 (Was mistakenly comparing against 'foundation' class (class) virtual table for virtual methods not found in there)
- Ultimately replaced that whole extra code by the section of code in the if block above (move it outside the if)
- Tested with EceRIS CodedLocation>LocationAbbreviation>Location>Id structure and both orders of LocationAbbreviation/CodedLocation
- Solved base type correction for enum base classes using code from RegisterClass