Replace moduleResolution and fix comment as requested in review

Author: dpvc

testsuite/tsconfig.json

@@ -3,6 +3,7 @@
   "compilerOptions": {
     "rootDir": ".",
     "outDir": "./js",
+    "moduleResolution": "nodenext",
     "paths": {
       "#js/*": ["../mjs/*"],
       "#source/*": ["../components/mjs/*"],

ts/input/tex/newcommand/NewcommandUtil.ts

@@ -363,8 +363,7 @@ export const NewcommandUtil = {
     if (handlers.get(HandlerType.DELIMITER).applicable(cs)) {
       //
       // This will hide the delimiter that is in a later mapping
-      // by forcing the parser to jump directly to the fallback
-      // handler.
+      // by forcing the parser to skip any additional maps.
       //
       this.addDelimiter(parser, cs, null);
     }