cv8: write member function info for member functions
tunnel class informaton to cv8
Add proper test-case for for ddoc escape system.
Fixes Issue 7569 - Allow void initializer for Tuple variables.
fix Issue 8997 - template instances omit symbol that may be used in other modules
Use sc->module->importedFrom
fix Issue 9494 - Error on recursive associative array declaration.
fix Issue 4094 - ICE(expression.c): recursive struct templates with type inference
Merge pull request #1674 from AndrejMitrovic/Fix7569

Issue 7569 - Allow void initializer for Tuple variables.
Merge pull request #1662 from 9rnsr/fix9494

Issue 9494 - Error on recursive associative array declaration.
Merge pull request #1667 from 9rnsr/fix8997

Issue 8997 - template instances omit symbol that may be used in other modules
Merge pull request #1658 from AndrejMitrovic/Fixup9369

Add proper test-case for for ddoc escape system.
Merge pull request #1640 from rainers/cv8_memberfunc

CV8: produce LF_MFUNCTION_V2 entry for member functions