Fixes https://github.com/dotnet/runtime/issues/71095

Adds `ActiveIssue`/`Conditional` attributes to libraries tests so that we can get a clean run with NativeAOT.

Starting with System.Collections, System.Runtime, and System.IO.FileSystem.

* [libraries][iOS][tvOS] Fix case of assembly in ActivatorTests

* Address test case change feedback

* Remove other activeissue

* Fix spacing
Co-authored-by: NMitchell Hwang <mitchell.hwang@microsoft.com>

In effort to assess the state of the iOS library tests, a number of tests will be skipped

Test suites that crash, hang, or have a significant number of failures (mostly 20+ failing unique test methods) are skipped on at the `tests.proj` level. Otherwise, `[ActiveIssue]` attributes have been attached to either the individual test methods that fail or the entire class if the whole test class fails. Any pre-existing `ActiveIssue` attribute associated with iOS had been reassessed to either remain or be closed.

A few test suites have been skipped because they fail with some form of `PlatformNotSupportedException`. `[SkipOnPlatform]` attributes are attached to the failing test methods.

All of the Issues can be tracked at https://github.com/dotnet/runtime/projects/48#column-9236436

The ActiveIssues and `tests.proj` exclusions have been tested on https://github.com/dotnet/runtime/pull/49917 as well.

-----------
This PR makes the following changes in the following files:
`src/libraries/System.IO.Ports/tests/System.IO.Ports.Tests.csproj` - Removed `$(NetCoreAppCurrent)-iOS` from target frameworks as it is stated to currently only supported on Windows.

`src/libraries/tests.proj` - Update the test suites that need to be skipped at the project level, reducing the number and categorizing as a skip due to PNSE, a skip due to numerous failures, and a skip due to the suite crashing.

The remaining files changed are either:
`[ActiveIssue("<issue-url>", TestPlatforms.iOS | TestPlatforms.tvOS | TestPlatforms.MacCatalyst)]`
`[SkipOnPlatform(TestPlatforms.iOS | TestPlatforms.tvOS, "Not supported on iOS or tvOS.")]`
Co-authored-by: NMitchell Hwang <mitchell.hwang@microsoft.com>
Co-authored-by: NTammy Qiu <tammy.qiu@yahoo.com>

- Both EAT, and AOT builds are completely green now.
- Number of tests for EAT goes from 147 -> 185
- Number of tests for AOT goes from 147 -> 174 (the difference is because of aot only failures)
- Test run on a regular wasm build runs 206 libraries

* WASM: fix System.Runtime.Tests

* Enable System.Runtime.Tests

* Disable test and don't strip link attributes on all product assemblies

* PR feedback

RemoteExecutor doesn't work on platforms that can't spawn processes like iOS/Android/WebAssembly.

Changes:
- enabled `runtime (Libraries Test Run release mono Windows_NT x64 Debug)` CI lane (Windows Nano Server CI leg is disabled);
- enabled the tests that pass;
- marked failing test assemblies/classes/methods with `ActiveIssue` attribute using respective GH issues;
- removed CoreFX.issues_windows.rsp file and related mono rsp arguments.

Fixes #1980

* Enable some tests passing locally

* Disable several tests failing in linux CI due to the problem with
libgdiplus

* Enable tests passing locally on Ubuntu 18.04

* Disable several tests failing in
AssemblyLoadContext.InternalLoadFromPath

* Remove CoreFX.issues_linux.rsp file

* Fix condition for including rsp files

Fixes #21827

* Address more issue numbers in the code

Replaced a bunch of unadorned issue numbers with links, so we know which repo the issue is for.  In some cases the repo was named, but for consistency I still replaced it with a link.

In some cases, in particular where the issue had been closed saying effectively "we're not going to do anything here", I removed TODOs and the associated issue numbers.

In a few cases, the TODO and issue number was to say "we should do X when Y is fixed", so I did X since Y was fixed.

* Apply suggestions from code review
Co-Authored-By: NJan Kotas <jkotas@microsoft.com>

* Address PR feedback

* Fix OrderedEnumerable by using MemoryExtensions.Sort
Co-authored-by: NJan Kotas <jkotas@microsoft.com>

* Consolidate .netcoreapp.cs files because System.Runtime project is no longer cross-compiled


Commit migrated from https://github.com/dotnet/corefx/commit/d6dac9e6a7875862b91139334c8ec620f599cd4d

* replace DefineConstants with SDK ones

Commit migrated from https://github.com/dotnet/corefx/commit/2133679ff62222ba2734232ab8fa4c65765e82a2

Re-enable StyleCop warnings SA1028 and SA1518 (trailing whitespace and blank lines) (dotnet/corefx#40113)

Mechanical/automated change.  The only manual changes were a) removing the two rules from the CodeAnalysis.ruleset file, b) removing spaces from one line of a .targets file that is used to generate a .cs file, and c) reverting the changes in a few test files where the naive replacement happened in the middle of a verbatim string where the whitespace actually mattered.

Commit migrated from https://github.com/dotnet/corefx/commit/09a6e66b0c2b31bd0f6e7e3170537d14027aeed0

Commit migrated from https://github.com/dotnet/corefx/commit/0837ff6ca8e494ac7a8c64316b2ce28744f42223

Netstandard test projects are broken by design and don't support the
Microsoft.Net.Test.SDK. Replacing the netstandard tfm with the concrete
implementation tfms.


Commit migrated from https://github.com/dotnet/corefx/commit/d29c16c99c6045ee67444a7a693dd4476861c463

Commit migrated from https://github.com/dotnet/corefx/commit/6038ddaa0ff66984fe157958ded2a2327ba1e743

* Add more Activator tests

* PR feedback, test fixes

* Remove ActiveIssue


Commit migrated from https://github.com/dotnet/corefx/commit/51db95936bce8caa5c5fd523c80983c1a3d7b55c

Commit migrated from https://github.com/dotnet/corefx/commit/7ae1a252d7e68c5513d2658de7a401c37e9b0504

* Moving PlatformDetection to Corefx.Private.TestUtilities assembly

The purpose of this change is to clean up all test projects instead of including the PlatformDetection code inside every test project, we’ll have it in the Corefx.Private.TestUtilities.
I have refactored the PlatformDetection to split the different implementation of Windows and Linux. If we need to do more refactoring there we can do it later as needed.

* Fix Linux BB

* Update the xunit package reference

* Fix wrong condition on one of the tests

* Update the ConditionalFact/Theory to use Type as a parameter


Commit migrated from https://github.com/dotnet/corefx/commit/878e2fcf5a9f1068015e5fada9231088663e3490

* Enable more System.Runtime.Tests coverage for ILC

A lot the .netcore.cs files are testing stuff
that "should" work in .Net Native (and tend to
represent the newer stuff which *isn't* likely
to have been ported yet). They should be active
in the UapAot build.

* Remove overrides for new apis from MockType

Depending on #if's isn't copacetic with its
being a Common *.cs file anyway.


Commit migrated from https://github.com/dotnet/corefx/commit/57469c31b9900c12600430af5ce8fad3c73af51e

Commit migrated from https://github.com/dotnet/corefx/commit/1675e0e8da21ba37c31090aac48243d3cd9cafd3

Bulk update to AssertExtensions.Throws for AOT support. This doesn't disable Assert.Throws.

Commit migrated from https://github.com/dotnet/corefx/commit/b43b4df2e0e2182154bb0f425cb4a61bc1269828

Commit migrated from https://github.com/dotnet/corefx/commit/449c7d67613ef8fd48a03a15856dd83fbf06aaf1

* Win32.Primitives

* System.Collections.Specialized

* System.Diagnostics.Process

* System.Globalization

* System.Globalization.Calendars

* System.IO

* System.IO.Compression

* System.IO.FileSystem

* System.IO.FileSystem.Watcher

* System.IO.Pipes

* System.Linq.Expressions

* System.Net.Primitives

* System.Net.Requests

* System.Net.Sockets

* System.Net.WebHeaderCollection

* System.ObjectModel

* System.Reflection

* System.Reflection.Emit

* System.Resources.ResourceManager

* System.Runtime

* System.Runtime.Extensions

* System.Runtime.Handles

* System.Runtime.InteropServices

* System.Security.Cryptography.X509Certificates

* System.Text.Encoding

* System.Text.Encoding.CodePages

* System.Threading

* System.Threading.Tasks

* System.Threading.Thread

* System.Threading.Timer

* System.ValueTuple


Commit migrated from https://github.com/dotnet/corefx/commit/023b6bdd6086271cbb6ca932c33d7783f8406062

* Enable tests to compile with netstandard

Most of the tests have netstandard configurations and it doesn't compile. the changes here is to fix the configurations and the tests to compile.
This is important step to get netfx tests compile too as we are in most of the time netfx fallback to netstandard configuration

The changes include some fixes to compile teh sources too.

* Fix System.Collections.Immutable

* update src configuration

* remove netstandard17 defines

* Split netcoreapp code to its own files

* Remove 17 from the test class name


Commit migrated from https://github.com/dotnet/corefx/commit/15b4f51c2f3cb924840e5407bb8d5fe03bb282ea

Regression tests for issues found in CoreRT/.NET Native.

Commit migrated from https://github.com/dotnet/corefx/commit/7291cf0408f126ce805ab63e8e0ec04fcb1395e6

* Add some System.Runtime tests

- Activator
- Array
- DateTime
- DateTimeOffset
- Delegate
- GC
- Guid
- Int32
- MulticastDelegate
- Nullable
- TimeZoneInfo

Commit migrated from https://github.com/dotnet/corefx/commit/2afff28cda18eba4957479d7ea84359a5537c978

Contributes to dotnet/corefx#2898


Commit migrated from https://github.com/dotnet/corefx/commit/44ae89e6e4c393dd2e95734b01b4f3ea5e3e0944

* Rename System.Runtime tests files
* Rename a System.Runtime test class

Fixes dotnet/corefx#4535

Commit migrated from https://github.com/dotnet/corefx/commit/bb2524259c749a5704973d370c4480417ff08a12

Follows test guidelines (remove prefix, add more detail to tests)
Contributes to dotnet/corefx#4535


Commit migrated from https://github.com/dotnet/corefx/commit/ca2b220786bca67a80a218fd1e670e0881ba5d00

Commit migrated from https://github.com/dotnet/corefx/commit/efd5b13b90c59c0d75bec38a9ef938e529061b5c

Commit migrated from https://github.com/dotnet/corefx/commit/95f6de20d59e3232f564f75abcec12d5e1de17cf

Commit migrated from https://github.com/dotnet/corefx/commit/88eb91ecd0f59b6079eec0564ce47ae5dc3974b5

Commit migrated from https://github.com/dotnet/corefx/commit/7cad8486cbabbce0236bdf530e30db7036335524