Symbols API: property CompiledName is compiled name of accessor

```fsharp
type T() =
[]
member x.Foo1 = 123

member x.Foo2 with set (_) = ()
```
When getting `CompiledName` for a symbol representing the `Foo1` property the result is `get_Foo1` (i.e. name of an accessor without applying `CompiledNameAttribute`) while I *think* it should be `Bar` instead (to be consistent with the attribute). There're separate symbols for accessors (when available) and they have improper names too (e.g. `get_Foo1`, `set_Foo1`).

When getting `CompiledName` for `Foo2` property the result is `set_Foo2` and I expect it to be just `Foo2`.