* Fix Invalid Types
Fix Invalid Types
Fixes invalid types.
##Summary of changes
### PendingBatch.php
235 - Closures cannot act as bounds. Seems like this was just a result of the type being long. Used a type alias instead.
### Dispatcher.php
239 - parens are required for parsing
560 - input is a class string, we cannot assert that the class string is an instance of class, instead we can assert its a class string of the class
819 - Type was resolved to callable|null, it seems the callable should return type|null instead.
### BladeCompiler.php
977+983 - not all callables support bindTo, only Closures do
* Update BladeCompiler.php
fix for native type change
* remove redundant type
some other static analysis system was triggering on this but its a bug with that system