chore: update description of SourceCode#getDeclaredVariables (#17072)

Author: mdjermanovic

lib/source-code/source-code.js

@@ -646,12 +646,12 @@ class SourceCode extends TokenStore {
     }
 
     /**
-     * Gets all of the declared variables in the scope associated
-     * with `node`. This is a convenience method that passes through
+     * Get the variables that `node` defines.
+     * This is a convenience method that passes through
      * to the same method on the `scopeManager`.
-     * @param {ASTNode} node The node from which to retrieve the scope to check.
+     * @param {ASTNode} node The node for which the variables are obtained.
      * @returns {Array<Variable>} An array of variable nodes representing
-     *      the declared variables in the scope associated with `node`.
+     *      the variables that `node` defines.
      */
     getDeclaredVariables(node) {
         return this.scopeManager.getDeclaredVariables(node);