thunk errors point at the signature, not at the callee

Carbon crash on code snippet with redefined variable

How to treat ambiguous .Self?

clangd-tidy is sometimes failing with errors like `'clang/Basic/RegularKeywordAttrInfo.inc' file not found`

Linking fails with `'ItaniumNodes.def' file not found`

`where Wrapper(.Self) impls Core.Copy` constraint not used by impl lookup inside function body

impl of a named constraint doesn't inherit values for associated constants

Should we move away from `:!` syntax for generics and templates?

Update to the syntax for class members: functions, methods, fields, etc.

Crash when using a generic function