Parens must be kept around sequential exprs with semicolons in record field assignments

[brianrourkeboll]

Repro

let B = 2
// Analyzer suggests removing parens,
// but that changes the entire parsing of the expression…
let foo = {| A = ((); B = 3) |}
// …or causes a parsing error.
let bar = {| A = ((); ()) |}

Expected behavior

SynExpr.shouldBeParenthesizedInContext should return true anywhere the semicolon is required for the sequential expression to compile:

One-liner sequential exprs

let B = 2
let foo = {| A = ((); B = 3) |}

Indentation-sensitive/offsides sequential exprs

let B = 2
let foo =
    {| A =
        (();
        B = 2) |}

Actual behavior

It returns false, and the analyzer suggests removing unnecessary parentheses.