feat!: align standard captures with upstream

Problem: Sharing highlight queries with upstream tree-sitter and
Helix is difficult.

Solution: Where reasonable, use capture names in tree-sitter's standard
list or Helix's Atom-style hierarchy.

Specifically:

* tree-sitter "standard capture names"
  (https://github.com/tree-sitter/tree-sitter/blob/3f44b896852eb7daaa6df4fb778c9bb52c70c815/highlight/src/lib.rs#L20-L72):

  - `@parameter` -> `@variable.parameter`
  - `@field` -> `@variable.member`
  - `@namespace` -> `@module`
  - `@float` -> `@number.float`
  - `@symbol` -> `@string.special.symbol`
  - `@string.regex` -> `@string.regexp`
  - `@text.*` -> `@markup.*` (`strong`, `italic`, `link`, `strikethrough`; with exceptions; see below)
  - `@text.title` -> `@markup.heading`
  - `@text.literal` -> `@markup.raw`
  - `@text.reference` -> `@markup.link`
  - `@text.uri` -> `@markup.link.url` (in markup links)
  - `@string.special` -> `@markup.link.label` (non-url links)
  - `@punctuation.special` -> `@markup.list` (markdown lists only; move subitems from `@text.todo`)

* Helix captures
  (https://docs.helix-editor.com/master/themes.html#syntax-highlighting):

  - `@method` -> `@function.method`
  - `@method.call` -> `@function.method.call`
  - `@text.{todo,warning,note,danger}` -> `@comment.{error,warning,hint,info,todo}`
  - `@text.diff.{add,delete,}` -> `@diff.{plus,minus,delta}`
  - `@text.uri` -> `@string.special.url` (outside markup)
  - `@preproc` -> `@keyword.directive`
  - `@define` -> `@keyword.directive`(`.define`?)
  - `@storageclass` -> `@keyword.storage`
  - `@conditional` -> `@keyword.conditional`
  - `@debug` -> `@keyword.debug`
  - `@exception` -> `@keyword.exception`
  - `@include` -> `@keyword.import`
  - `@repeat` -> `@keyword.repeat`

* cleanup

  - remove some redundant `@conceal` (but still allow it for conceal-only patterns)
  - remove obsolete `@error` (syntax linting is out of scope for this repo)
  - sort, cleanup capture list in `CONTRIBUTING.md`

1 files changed, 9 insertions, 9 deletions

diff --git a/queries/smithy/highlights.scm b/queries/smithy/highlights.scm
index 2b709c2a2..bb54dad73 100644
--- a/queries/smithy/highlights.scm
+++ b/queries/smithy/highlights.scm
@@ -1,16 +1,16 @@
 ; Preproc
 
-(control_key) @preproc
+(control_key) @keyword.directive
 
 ; Namespace
 
-(namespace) @namespace
+(namespace) @module
 
 ; Includes
 
 [
   "use"
-] @include
+] @keyword.import
 
 ; Builtins
 
@@ -25,13 +25,13 @@
 
 ; Fields (Members)
 
-; (field) @field
+; (field) @variable.member
 
-(key_identifier) @field
+(key_identifier) @variable.member
 (shape_member
-  (field) @field)
-(operation_field) @field
-(operation_error_field) @field
+  (field) @variable.member)
+(operation_field) @variable.member
+(operation_error_field) @variable.member
 
 ; Constants
 
@@ -82,7 +82,7 @@
 
 (number) @number
 
-(float) @float
+(float) @number.float
 
 (boolean) @boolean