Make 'method' keyword more specific

queries/highlights.scm

@@ -26,6 +26,10 @@
  "new"
 ] @keyword.constructor
 
+[
+ "method"
+] @keyword.method
+
 [
   "array"
   (break_expression)

test/highlight/object-oriented.tig

@@ -12,7 +12,7 @@ let
     var a := 12
 
     method meth() : int = self.a
-    /* <- keyword */
+    /* <- keyword.method */
     /*     ^ method */
     /*                    ^ variable */
   }