fix(docs): update context type in vim.lsp.LocationOpts.OnList

runtime/doc/lsp.txt

@@ -1465,7 +1465,8 @@ Lua module: vim.lsp.buf                                              *lsp-buf*
     Fields: ~
       • {items}     (`table[]`) Structured like |setqflist-what|
       • {title}?    (`string`) Title for the list.
-      • {context}?  (`table`) `ctx` from |lsp-handler|
+      • {context}?  (`{ bufnr: integer, method: string }`) Subset of `ctx`
+                    from |lsp-handler|.
 
 *vim.lsp.buf.hover.Opts*
     Extends: |vim.lsp.util.open_floating_preview.Opts|

runtime/lua/vim/lsp/buf.lua

@@ -264,7 +264,7 @@ end
 --- @class vim.lsp.LocationOpts.OnList
 --- @field items table[] Structured like |setqflist-what|
 --- @field title? string Title for the list.
---- @field context? table `ctx` from |lsp-handler|
+--- @field context? { bufnr: integer, method: string } Subset of `ctx` from |lsp-handler|.
 
 --- @class vim.lsp.LocationOpts: vim.lsp.ListOpts
 ---