Closures do not have a method name that makes sense to use in the ide_helper
file.
e.g. Illuminate\Foundation\Providers\{closure} would be the real_name instead of
just validate. So for the closure methods, we should just use the provided
methodName instead.
When a method is declared both in the phpdoc and in the class itself,
PhpStorm (2018.3) complains about duplicate function declarations, preventing
correct code hinting.
To solve this, I remove the already declared functions from the generated dockblocks.
Jeppe Knockaert