* migrate to netcoreapp3.1

* update comments

* update tool versions

* Migrated comparison FSI test case

* Migrated string format FSI test case

* fix pattern match recovery

* add testcase and fixup

* Update TypeChecker.fs

* Replace throw with EDI throw in CE catch handlers, fixes #8529

* Address feedback, move to EDI.Capture(exn).Throw() for netfx compatibility

* perform sourceExpr translation on match-bang expressions

* add test for match-bang source translations

As suggested by @baronfel in this issue discussion:
https://github.com/fsharp/FSharp.Compiler.Service/issues/941

* I can confirm that dobang is not, in fact, simple

* add test to verify do-bang behavior

* key type changed to providedType

* fixed singleton

* moved up

* Migrated FormatSpec test cases to NUnit

* Migrated string constructor test cases to NUnit

* Unlisted migrated test cases from env.lst

* Migrated comparison test cases to NUnit

* Migrated cast to units test cases to NUnit

* Cleanup

* Cleanup

* Update SDK stuff in build

* add it back

* Update expression ranges

* Keep parens in parsed operator uses

* Fix getting parameter info for prefix operator invocations

* Remove redundant "new" keywords in async.fs.

* Refactor the use of AsyncReturn and (un)fake to produce better IL code.

The calls to fake() are everywhere inlined and translated to an ldnull. The calls to unfake were replaced by ignore.
The (un)fake functions inside the AsyncPrimitives module were already properly inlined and were not changed.
And remove a branch in Trampoline.Execute.

* Avoid allocating an option in Async.Parallel.

* Remove AsyncActivation.CallExceptionContinuation.

It is identical with AsyncActivation.econt.

* Add a test for cancelling an Async by ThrowingIfRequested.

* Remove a double inversion of a variable.

Use parameterless Action delegates in cancellation event handlers.

* fix loader

* typos

Microsoft.DotNet.Arcade.Sdk
 From Version 1.0.0-beta.20301.10 -> To Version 1.0.0-beta.20302.3
Co-authored-by: Ndotnet-maestro[bot] <dotnet-maestro[bot]@users.noreply.github.com>

* Remove parseILGlobals

* Fixed build

* cleanup for feature/witness-passing

* witness passing implementation

* fix build

* cleanup for feature/witness-passing

* simplify code

* remove NoDynamicInvocation attribute from signature files

* fix quotations in inline code that pass witness args

* isLegacy internal

* cleanup WitnessArg and add documentation

* fix test

* fix abs bug and test calling it

* code review feedback

* fix build

* clarify code
Co-authored-by: NKevin Ransom (msft) <codecutter@hotmail.com>

[master] Update dependencies from dotnet/arcade

* Add SynType.Paren

* Review fixes: Skip -> Strip, remove `rec`

* Add test for paren types ranges

* Cleanup tests

* Update neg04 test baseline

* Cleanup
Co-authored-by: NKevin Ransom <codecutter@hotmail.com>

Microsoft.DotNet.Arcade.Sdk
 From Version 1.0.0-beta.20278.5 -> To Version 1.0.0-beta.20301.10

* Fix #9217 -- Nuget #r references do not resolve assemblies referenced through the primary one

* Regression test

* Feedback

* triple quote

* [WIP] Factor out CompilerAsserts, TestFramework, ILChecker to separate library

* [WIP] +NUnit reference; Put Utilities.fs under module

* Fixed tests to use new helpers library

* Added <NoWarn>3186</NoWarn> to the FSharpSuite.Tests.

* Added missing import for the TestHelpers.

* Added missing solution entries for the project

* Fix tests.fs to run tests with proper path

* Fixed more paths in the tests

* More fixes to test paths

* More fixes to test paths (again)

[master] Update dependencies from dotnet/arcade

Microsoft.DotNet.Arcade.Sdk
 From Version 1.0.0-beta.20269.3 -> To Version 1.0.0-beta.20278.5

* adjust non-optional nullable interop

* adjust non-optional nullable interop

* fix error messages

* fix baseline

* fix baseline

* Fix dependencies for .csx files

* temp

* ifEmptyUse fSharpCompilerLocation

In Wasm `Assembly.Location` do not have directory path since assemblies reside in memory.

* Check GetEnvironmentVariable("FSHARP_COMPILER_BIN") before tryAppConfig

In Wasm `tryAppConfig` throws and env var `FSHARP_COMPILER_BIN` never gets tested, so do it first

* ifEmptyUse with IsNullOrWhiteSpace

* Add char to types resolvable by GenericZero

* Add char to get_Zero solving

* Add char to test

* Add char to test

* Add char to test again

* Fix naming

* MakeCalledArgs allocates a struct tuple

* Add vsnd

* Replace 'max' with DateTime.Compare in ComputeMaxTimeStamp

* Generalize datetime in fsharp.core

* baselines
Co-authored-by: NKevin Ransom <codecutter@hotmail.com>

* Update version

* Update Versions.props

* Update Versions.props