Generally, Scintilla constants which names beginning with 'SCXX' are mapped to wxSTC names by by stripping out the 'SC' before prepending 'wxSTC_', for example SCWS_INVISIBLE gets mapped to wxSTC_WS_INVISIBLE. Unfortunately, this common rule of mapping the names is not applied to the (legacy) names beginning with 'SCVS_' and 'SCMOD_'.
For the sake of consistency, also these names should conform to the common naming convention, so gen_iface.py is updated to generate conformant names for all affected prefixes. Legacy names are preserved for backward compatibility but commented deprecated and no longer referenced in the documentation.
Closes#17808.