Handle param null check with else clause

[RikkiGibson]

Related to #36024

Gives a correct fix in a scenario like the following:

cc @CyrusNajmabadi

[RikkiGibson]

@CyrusNajmabadi I believe I have addressed all your review comments. Please let me know if you have any others.

[RikkiGibson]

@CyrusNajmabadi is there a need to handle indent depth of new lines within statements of the else clause? (i.e. by adding elastic trivia) in a scenario like the following?

cc @stephentoub

[CyrusNajmabadi]

@CyrusNajmabadi is there a need to handle indent depth of new lines within statements of the else clause? (i.e. by adding elastic trivia) in a scenario like the following?

Yup, that's the same issue i had you open. This is why we need a general "dedent/indent construct to appropriate level" annotation, which only does that work and no other formatting.

[RikkiGibson]

#59228