Update version numbers for FSharp.Core

[KevinRansom]

  FSharp Language Version: 6.0
  FSharp.Core assembly Version: 6.0.0.0
  FSharp.Core package Version: 6.0.0
  FCS assembly version: 41.0.0.0
  FCS package version: 41.0.1

  LanguageFeature.AdditionalTypeDirectedConversions, languageVersion60
  LanguageFeature.RelaxWhitespace2, languageVersion60
  LanguageFeature.OverloadsForCustomOperations, languageVersion60
  LanguageFeature.ExpandedMeasurables, languageVersion60
  LanguageFeature.ResumableStateMachines, languageVersion60
  LanguageFeature.StructActivePattern, languageVersion60
  LanguageFeature.PrintfBinaryFormat, languageVersion60
  LanguageFeature.IndexerNotationWithoutDot, languageVersion60
  LanguageFeature.RefCellNotationInformationals, languageVersion60
  LanguageFeature.UseBindingValueDiscard, languageVersion60
  LanguageFeature.NonVariablePatternsToRightOfAsPatterns, languageVersion60
  LanguageFeature.AttributesToRightOfModuleKeyword, languageVersion60

[vzarytovskii]

Seems only one test failing:

+++ Diagnostics\async (UsingReturnInIfThenElse.fs) +++
--------------------------------------------------------
Results from hosted compiler
msg: Compiling
cmd: fsc   --warnaserror+ --test:ErrorRanges --flaterrors UsingReturnInIfThenElse.fs 
Exit code: 1
Error:     0
Microsoft (R) F# Compiler version 12.0.0.0 for F# 6.0
Copyright (c) Microsoft Corporation. All Rights Reserved.
(6,9-6,21): error FS0193: Type constraint mismatch. The type �    'Async<unit>'    �is not compatible with type�    'Async<int>'
--------------------------------------------------------
Compiling: [fsc   --warnaserror+ --test:ErrorRanges --flaterrors UsingReturnInIfThenElse.fs ]
Microsoft (R) F# Compiler version 12.0.0.0 for F# 6.0
Copyright (c) Microsoft Corporation. All Rights Reserved.

UsingReturnInIfThenElse.fs(6,9-6,21): error FS0193: Type constraint mismatch. The type �    'Async<unit>'    �is not compatible with type�    'Async<int>'
Compile Unexpectedly Failed: 256 
FAIL

[KevinRansom]

@vzarytovskii , yes it has taken some thought to figure out tmagic for that.

[KevinRansom]

@vzarytovskii , @brettfo --- Assuming it passes this is ready

[dsyme]

@KevinRansom I updated tests.fs to remove the test case corresponding to the deleted test files for array-no-dot-warnings in preview

[dsyme]

Is there a specific reason this needed langversion 5.0?

[KevinRansom]

Hey @dsyme , indeed yes and amazingly I can even remember why ... the test verified the behaviour without preview [Right Attribute Module Abbreviation without preview (compile)`]. I.e. the old F#5.0 behaviour, so ... this the test became with net50 [Right Attribute Module Abbreviation with version 5.0 (compile)] instead

[Happypig375]

This... isn't the test you are referring to.