Let binding broken

[davidpodhola]

May be related to the latest FSharp.Compiler.Service 3.0.0 release.
An example of what is no longer working

let result =
    let i, j, k = (1, 2, 3)
    // Body expression: 
    i + 2*j + 3*k

[davidpodhola]

Changed to

using System;
using static fs2csLib.Impl;

public class Test24 {
    public static readonly int result = Tuple<int,int,int> patternInput=Tuple.Create(1,2,3);
    int k=(patternInput).Item3;
    int j=(patternInput).Item2;
    int i=(patternInput).Item1;
    return i+2*j+3*k;
}

Anyway still not handling body expressions correctly. Needs to be redone.