In some cases, the type of Error thrown by minErr is meaningful, such as in $q where a TypeError
is sometimes required. This fix allows providing an error constructor as the second argument to
minErr, which will be used to construct the error that gets returned by the factory function.
The Promises A+ 1.1 spec introduces new constraints that would cause $q to fail,
particularly specs 2.3.1 and 2.3.3.
Newly satisfied requirements:
* "then" functions that return the same fulfilled/rejected promise
will fail with a TypeError
* Support for edge cases where "then" is a value other than function
Full 1.1 spec: https://github.com/promises-aplus/promises-spec/tree/1.1.0
This commit also modifies the adapter to use "resolve" method instead of "fulfill"
This can be used internally to remove the repeating pattern of `obj && obj.then`. For now, I don't see a good reason to expose this in angular's public interface.
