Update SDK to latest stable - 6.0.301
Update SDK to latest stable - 6.0.301

It includes fixes for subtype matching as well as `function` matching fix with explicit type abbreviation.

cc @KevinRansom @baronfel @auduchinok
dsyme/fsharp,dsyme/fsharp,dsyme/fsharp,dsyme/fsharp,dsyme/fsharp,dsyme/fsharp,dsyme/fsharp