refactor: Inline Field.parseGroupLine()

Author: claremacrae

src/Query/Filter/Field.ts

@@ -264,16 +264,6 @@ export abstract class Field {
         return false;
     }
 
-    /**
-     * Parse a 'group by' line and return a {@link Grouper} object.
-     *
-     * Returns null line does not match this field or is invalid,
-     * or this field does not support grouping.
-     */
-    public parseGroupLine(line: string): Grouper | null {
-        return this.createGrouperFromLine(line);
-    }
-
     /**
      * Parse the line, and return either a {@link Grouper} object or null.
      *

src/Query/FilterParser.ts

@@ -101,7 +101,7 @@ export function parseGrouper(line: string): Grouper | null {
     // See if any of the fields can parse the line.
     for (const creator of fieldCreators) {
         const field = creator();
-        const grouper = field.parseGroupLine(line);
+        const grouper = field.createGrouperFromLine(line);
         if (grouper) {
             return grouper;
         }