Support comment injection

Author: 0x2CA

languages/emmylua/injections.scm

@@ -1,11 +1,16 @@
 ;; Injections for Lua code
 
+((comment) @injection.content
+ (#set! injection.language "comment")
+)
+
 ;; EmmyLua Doc comments injection
 ;; Inject --- comments as emmyluadoc language
 ;; The emmyluadoc grammar now supports --- prefix, so we can directly inject
-((comment) @injection.content
- (#match? @injection.content "^---")
- (#set! injection.language "emmyluadoc"))
+
+(((comment) @_emmyluadoc_comment
+  (#match? @_emmyluadoc_comment "^---")) @injection.content
+  (#set! injection.language "emmyluadoc"))
 
 ;; LuaJIT FFI C code injection
 ((function_call