Add new undentation rule for match with

I propose we add a new undentation rule for

match 
    long/multi line of code
with
| Foo -> false
| Bar -> true

The existing way of approaching this problem in F# is quite ugly

match 
    long/multi line of code
    with
    | Foo -> false
    | Bar -> true

or what I catch myself doing a lot without really needing that local at all beyond the match is

let x = 
    long/multi line of code
match x with
| Foo -> false
| Bar -> true

Pros and Cons

The advantages of making this adjustment to F# are: easier to use match statements with large expressions

The disadvantages of making this adjustment to F# are: I'm not sure if this would be breaking anything

Extra information

Estimated cost (XS, S, M, L, XL, XXL): XS

Affidavit (please submit!)

Please tick this by placing a cross in the box:

• This is not a question (e.g. like one you might ask on stackoverflow) and I have searched stackoverflow for discussions of this issue
• I have searched both open and closed suggestions on this site and believe this is not a duplicate
• This is not something which has obviously "already been decided" in previous versions of F#. If you're questioning a fundamental design decision that has obviously already been taken (e.g. "Make F# untyped") then please don't submit it.

Please tick all that apply:

• [?] This is not a breaking change to the F# language design
• I or my company would be willing to help implement and/or test this