fix issue 10694 - wrong purity check for static variables with impure
destructor
fix Issue 10073 - Default opEquals depends on class declaration order with DMD HEAD

Resolve forward reference correctly.
Additional fix for issue 10567 in order to generate correct TypeInfo
fix issue 10688 - Misleading error message when attempting a "private
override"
Merge pull request #2373 from hpohl/10694

fix issue 10694 - wrong purity check for static variables with impure destructor
Merge pull request #2374 from 9rnsr/fix10567

Additional fix for issue 10567 in order to generate correct TypeInfo
Merge pull request #2376 from hpohl/10688

[enh] fix issue 10688 - Misleading error message when attempting a "private override"