Initial release: Function type
QA: Adjust coding standards
Implement parameter parsing from method's apidoc
Remove unused method
QA: Apidocs
Implement FunctionType::isInstance()
Refactor: Shorten code inside isInstance()
Also test return type
Integrate function types into typeof()
MFH
Fix copy&paste leftover
Use Primitive::$ARRAY for array type hint
Implement cast()
Implement isAssignableFrom()
Implement newInstance()
Support strings referencing builtin functions and arrays for methods
See php://is_callable, php://callable
Verify return and parameter types if we have them
QA: Simpify code inside verify()
Rename returnType member to returns
Implement casting NULL