Brainstorm scope of 0.6.0

[chriseth]

Likely candidates:

• <external_function_type>.address Replace explicit cast from external function types by member #4994
• disallow shadowing everywhere
• introduce virtual and override
• using L for a,b,c; Feature to allow libraries to be added to multiple datatypes without using wildcard #5018

I would also like to have the fallback function split, but we still have not decided on a name.

Perhaps we should not think about a full redesign of inheritance and just disallow what people annoys currently.

[christianparpart]

I'd like to add my most favorite contenders to your list:

• compile time evaluated functions (functions without side-effects and with input parameters known at compile time should not generate the CALL-opcodes but instead evaluate the result at compile-time and use that directly at runtime - this would requiere a TinyEVM within solidity)
• major rewrite of diagnostics reporting (so we can support syntax/colored output) to improve readability. -- there seems to be a heavily outdated POC PR: [WIP] Improve error message formatting #3046
• Language Server support!

[axic]

compile time evaluated functions

#3157 & #3878

[axic]

Can we move this into the project board? That requires adding these proposed items as issues.

[chriseth]

I'm moving all the issues to the 0.6.0 project.

@christianparpart could you create issues for the first and the last item you raised?