visitCallableDeclaration method
Visits each of node
's expressions and children.
The default implementations of visitFunctionRule and visitMixinRule call this.
Implementation
@protected
T? visitCallableDeclaration(CallableDeclaration node) =>
node.arguments.arguments.search(
(argument) => argument.defaultValue.andThen(visitExpression)) ??
super.visitCallableDeclaration(node);