jsx: Add special highlighting to component names

runtime/queries/javascript/highlights.scm

@@ -1,6 +1,28 @@
 ; JSX
 ;----
 
+; Highlight component names differently
+
+(jsx_opening_element ((identifier) @constructor
+ (#match? @constructor "^[A-Z]")))
+
+; Handle the dot operator effectively - <My.Component>
+(jsx_opening_element ((nested_identifier (identifier) @tag (identifier) @constructor)))
+
+(jsx_closing_element ((identifier) @constructor
+ (#match? @constructor "^[A-Z]")))
+
+; Handle the dot operator effectively - </My.Component>
+(jsx_closing_element ((nested_identifier (identifier) @tag (identifier) @constructor)))
+
+(jsx_self_closing_element ((identifier) @constructor
+ (#match? @constructor "^[A-Z]")))
+
+; Handle the dot operator effectively - <My.Component />
+(jsx_self_closing_element ((nested_identifier (identifier) @tag (identifier) @constructor)))
+
+; TODO: also tag @punctuation.delimiter?
+
 (jsx_opening_element (identifier) @tag)
 (jsx_closing_element (identifier) @tag)
 (jsx_self_closing_element (identifier) @tag)