the "add missing members" assists: implemented substitution of default values of const params
To achieve this, I've made `hir::ConstParamData` store the default values
Fix pinned version of lsp-types
lsp-types published a new patch version that breaks semver with the proposed feature set (this is intended and documented), we unfortunately forgot to specify the patch version for the pinned version so this breaks us.
Support doc links that resolve to fields
Fixes#15331
Also removes `Resolver::resolve_module_path_in_trait_assoc_items()` and reimplements it in hir with other `Resolver` methods to decouple things a bit.
Handle `#[cfg]`s on generic parameters
Records attributes on generic parameters in the item tree and filters out generic parameters disabled by `#[cfg]`s in `generic_params_query`.
Closes#11756
fix: Expand eager macros to delimited comma separated expression list
Prior to this, we were just parsing it as an expression which works fine for `()` and `[]` calls as those are tuple and array expressions respectively, but if tails for `{}` calls which with my recent changes reported errors for such eager macro invocations.
Fixup path fragments upon MBE transcription
Fixes#14367
There are roughly two types of paths: paths in expression context, where a separator `::` between an identifier and its following generic argument list is mandatory, and paths in type context, where `::` can be omitted.
Unlike rustc, we need to transform the parsed fragments back into tokens during transcription. When the matched path fragment is a type-context path and is transcribed as an expression-context path, verbatim transcription would cause a syntax error.
This PR fixes up path fragments by inserting `::` to make sure they are syntactically correct in all contexts. Note that this works because expression-context paths are a strict superset of type-context paths.
internal: Format let-else
As nightly finally got support for it I went ahead and formatted r-a with the latest nightly, then with the latest stable (in case other stuff changed)
