Offside rules for accessibility modifier after the '=' in record declarations might need work

These forms compile:

```fsharp
type Foo = private { Bar: int; Baz: int }

type Foo = private {
Bar: int
Baz: int }

// Anything where `private {` is on the same line
```

These do not:

```fsharp
type Foo = private
{ Bar: int
Baz: int }

// Anything where `{ Bar...` is not indented a scope further than `private`
```

These do:

```fsharp
type Foo =
private
{ Bar: int
Baz: int }

type Foo = private
{ Bar: int
Baz: int }
```