COM interface createPerformer throwing exception

[0xchase]

Found another place the COM interface may throw an exception -- PerformerInterface::createPerformer. Rust can't catch foreign exceptions which makes this unrecoverable. Adding a try/catch to the cmajor source indicates it's a AbortCompilationException, but I haven't managed to identify what's throwing it since (to my knowledge) there's not a way to get a DiagnosticMessage or a result type.