This commit enables providing long-form documentation more seamlessly to the LSP
by revamping decl documentation. For ODS imported constructs, we now also import
descriptions and attach them to decls when possible. For PDLL constructs, the LSP will
now try to provide documentation by parsing the comments directly above the decls
location within the source file. This commit also adds a new parser flag
`enableDocumentation` that gates the import and attachment of ODS documentation,
which is unnecessary in the normal build process (i.e. it should only be used/consumed
by tools).
Differential Revision: https://reviews.llvm.org/D124881
This allows for navigating to included files on click, and also provides hover
information about the include file (similarly to clangd).
Differential Revision: https://reviews.llvm.org/D124077
This adds support for providing information when hovering over
operation names, variables, patters, constraints, and rewrites.
Differential Revision: https://reviews.llvm.org/D121542