* mono add support to build for ppc64le

* fix build failures in mini-ppc.c

* handle unhandled exception ids

* donot use std/ld inst when address is not div by 4.
This adds fix for test failure in
System.Buffers.Binary.Tests.BinaryReaderUnitTestsw.ReadingStructFieldByFieldOrReadAndReverseEndianness

* Fixed failing test cases from System.Numerics.Vectors.Tests

* change objcopy name for ppc64le from ppc64le-linux-gnu-objcopy to powerpcle-linux-gnu-objcopy

* Change DeserializeAsyncEnumerable so that reading from the underlying stream does not wait until the underlying buffer is full.
* Encapsulate the buffer management logic behind ReadBufferState.
* Avoid allocating a new JsonTypeInfo instance on every IAsyncEnumerator initialization.

* Updating the various generic math functions to have default implementations

* Ensure GenericMathHelpers keep the right constraints

* Fix async handle leak when sync RandomAccess read/write on async handle fails

* Use UnsafeAllocateNativeOverlapped in GetNativeOverlappedForAsyncHandle

This isn't invoking user code and it's entirely for synchronous operations; there's no reason it needs to capture ExecutionContext.

We're seeing Windows ARM64 workitems being stuck in the Helix queue for more than 90 minutes.

* Enable IDE0029 (Use coalesce expression)

* Address PR feedback and a few missed cases

* Move analyzer and fixer tests into FunctionalTests project

* Don't use the live ref pack references infrastructure

Co-authored-by: NTanner Gooding <tagoo@outlook.com>

* Fix impTokenToHandle when importing parent

This was mistakenly creating a handle for the parent (always a class)
but specifying the handle type of the child (e.g. constructor method
handle).

* Do not lie about critical sections being method handles

* Update project

* Create readme.md

* Fix typo

* Update src/libraries/System.Text.Json/src/readme.md
Co-authored-by: NEirik Tsarpalis <eirik.tsarpalis@gmail.com>

* Delete readme.md

* Rename readme file

* Add more docs links

* Fix link

* Update PackageDescription

* Apply suggestions from code review
Co-authored-by: NEirik Tsarpalis <eirik.tsarpalis@gmail.com>
Co-authored-by: NViktor Hofer <viktor.hofer@microsoft.com>

* Remove mentions of exact target framework versions
Co-authored-by: NEirik Tsarpalis <eirik.tsarpalis@gmail.com>
Co-authored-by: NViktor Hofer <viktor.hofer@microsoft.com>

The analyzer bug was fixed.

Sample stack:

```
 	System.Runtime.Tests.exe!S_P_CoreLib_System_SR__GetResourceString() Line 29	Unknown
 	System.Runtime.Tests.exe!S_P_CoreLib_System_Exception__get_Message() Line 57	Unknown
 	System.Runtime.Tests.exe!S_P_CoreLib_System_Exception__AppendExceptionStackFrame() Line 134	Unknown
 	System.Runtime.Tests.exe!S_P_CoreLib_System_Runtime_EH__AppendExceptionStackFrameViaClasslib() Line 234	Unknown
 	System.Runtime.Tests.exe!S_P_CoreLib_System_Runtime_EH__UpdateStackTrace() Line 735	Unknown
 	System.Runtime.Tests.exe!S_P_CoreLib_System_Runtime_EH__DispatchEx() Line 630	Unknown
 	System.Runtime.Tests.exe!S_P_CoreLib_System_Runtime_EH__RhThrowEx() Line 571	Unknown
 	System.Runtime.Tests.exe!RhpThrowEx�()	Unknown
 	System.Runtime.Tests.exe!S_P_TypeLoader_Internal_TypeSystem_TypeDesc__ComputeTemplate_0() Line 241	Unknown
 	System.Runtime.Tests.exe!S_P_TypeLoader_Internal_TypeSystem_TypeDesc__ComputeTemplate() Line 233	Unknown
```

* prevent reentering CreateThreadLocalContentionCountObject

* do not call into type system on lock contentions

* [wasm] Add infrastructure for building WebWorkers

- Modify the rollup.config.js script to look for webworkers and to
  roll them up into IIFE js files in the ${nativeBinDir}/src artifacts
  directory
   - A "webworker" is any file in `src/mono/wasm/runtime/workers/` that
looks like `dotnet-{workerName}-worker.ts` or `.js`.  It can also
include other files (ideally by defining them in files in
subdirectories for that worker
`src/mono/wasm/runtime/workers/dotnet-{workerName}-worker/utility.ts`)
   - Other changes still have to be done manually in wasm.proj, and
   elsewhere in order to place the bundled JS file in the right place.

- Adds a tsconfig.json for the workers to typecheck using the
DedicatedWorkerGlobalScope and without the DOM globals (`window`, etc)

- This doesn't convert dotnet-crypto-worker.js into TypeScript, but it
does turn on TypeScript checking using a JSDoc comment.
  To convert that file to typescript:
  1. rename `workers/dotnet-crypto-worker.js` to
  `workers/dotnet-crypto-worker.ts`
  2. replace uses of `var` by `let` or `const`
  3. add `:any` in various places.

* use fast-glob instead of fs.readdir

* add fast-glob to devDependencies

[mono][wasm] Add a 'wasm-gc-safepoints' option to enable the generation of GC safe points in AOTed code on WASM. (#70520)

When the results xml is large, and we are writing the base64
representation in one line, `node` can exit before all the output gets
flushed out. This results in xharness getting an incomplete
`STARTRESULTXML <len> <base64> ... ` with missing `ENDRESULTXML`, thus
no `testResults.xml` is generated.

This can be seen in the case of `Microsoft.Extensions.Primitives.Tests`
which has xml ~140KB, and `System.Memory.Tests` which has a xml ~13MB.

So, wait for the two streams to be flushed out, with a timeout of 3secs.

- use the `drain` event only if `stream.write('')` returns `false`
* Address review feedback @kg, @maraf

Add basic testing infrastructure in NativeAOT (port from dotnet/linker)

- Port the Mono.Linker.Tests* projects from dotnet/linker
- Add the new projects to .editorconfig so they remain under the dotnet/linker format instead of dotnet/runtime
- clr.toolstests subset now runs the Mono.Linker.Tests infrastructure
- Make DisplayNameHelpers a public class so it can be used by the test infrastructure
- Add a couple of simple test cases (Dataflow and Requires) along with a Repro test, just like the repro project the repro test serves prototyping purposes
- Adds ProducedBy.NativeAOT to be able to represent differences between dotnet/linker and NativeAOT (either because of a bug or because NativeAOT correctly produces additional warnings)
- Use MSBuild properties instead of trying to figure out with linker paths

[main] Update dependencies from dotnet/linker

* Add a test

* Fix the issue

* Modify thread pool thread counting to be a bit more defensive

- An unexpected underflow in one or more thread counts can lead to a large number of threads to be created continually
- Prevented underflows in changes to thread counts, such that following an unexpected underflow, subsequent paired increments and decrements would avoid repeating the underflow
- Verified by creating an unexpected underflow in the debugger

The new `Threading*` CI jobs on `runtime-wasm` use `shouldContinueOnError: false` because the tests are known to be unstable right now. But they were not getting correctly forwarded to the base templates.

Merging. Thanks @SteveDunn for your contribution.

* Update dependencies from https://github.com/dotnet/arcade build 20220519.3

Microsoft.DotNet.XUnitConsoleRunner , Microsoft.DotNet.CodeAnalysis , Microsoft.DotNet.Build.Tasks.Workloads , Microsoft.DotNet.Build.Tasks.Templating , Microsoft.DotNet.Build.Tasks.TargetFramework , Microsoft.DotNet.Build.Tasks.Packaging , Microsoft.DotNet.Build.Tasks.Installers , Microsoft.DotNet.Build.Tasks.Feed , Microsoft.DotNet.Build.Tasks.Archives , Microsoft.DotNet.Arcade.Sdk , Microsoft.DotNet.ApiCompat , Microsoft.DotNet.XUnitExtensions , Microsoft.DotNet.GenAPI , Microsoft.DotNet.VersionTools.Tasks , Microsoft.DotNet.GenFacades , Microsoft.DotNet.SharedFramework.Sdk , Microsoft.DotNet.RemoteExecutor , Microsoft.DotNet.PackageTesting , Microsoft.DotNet.Helix.Sdk
 From Version 2.5.1-beta.22255.2 -> To Version 2.5.1-beta.22269.3

* Update dependencies from https://github.com/dotnet/arcade build 20220523.1

Microsoft.DotNet.XUnitConsoleRunner , Microsoft.DotNet.CodeAnalysis , Microsoft.DotNet.Build.Tasks.Workloads , Microsoft.DotNet.Build.Tasks.Templating , Microsoft.DotNet.Build.Tasks.TargetFramework , Microsoft.DotNet.Build.Tasks.Packaging , Microsoft.DotNet.Build.Tasks.Installers , Microsoft.DotNet.Build.Tasks.Feed , Microsoft.DotNet.Build.Tasks.Archives , Microsoft.DotNet.Arcade.Sdk , Microsoft.DotNet.ApiCompat , Microsoft.DotNet.XUnitExtensions , Microsoft.DotNet.GenAPI , Microsoft.DotNet.VersionTools.Tasks , Microsoft.DotNet.GenFacades , Microsoft.DotNet.SharedFramework.Sdk , Microsoft.DotNet.RemoteExecutor , Microsoft.DotNet.PackageTesting , Microsoft.DotNet.Helix.Sdk
 From Version 2.5.1-beta.22255.2 -> To Version 2.5.1-beta.22273.1

* Update dependencies from https://github.com/dotnet/arcade build 20220524.3

Microsoft.DotNet.XUnitConsoleRunner , Microsoft.DotNet.CodeAnalysis , Microsoft.DotNet.Build.Tasks.Workloads , Microsoft.DotNet.Build.Tasks.Templating , Microsoft.DotNet.Build.Tasks.TargetFramework , Microsoft.DotNet.Build.Tasks.Packaging , Microsoft.DotNet.Build.Tasks.Installers , Microsoft.DotNet.Build.Tasks.Feed , Microsoft.DotNet.Build.Tasks.Archives , Microsoft.DotNet.Arcade.Sdk , Microsoft.DotNet.ApiCompat , Microsoft.DotNet.XUnitExtensions , Microsoft.DotNet.GenAPI , Microsoft.DotNet.VersionTools.Tasks , Microsoft.DotNet.GenFacades , Microsoft.DotNet.SharedFramework.Sdk , Microsoft.DotNet.RemoteExecutor , Microsoft.DotNet.PackageTesting , Microsoft.DotNet.Helix.Sdk
 From Version 2.5.1-beta.22255.2 -> To Version 2.5.1-beta.22274.3

* Update dependencies from https://github.com/dotnet/arcade build 20220524.7

Microsoft.DotNet.XUnitConsoleRunner , Microsoft.DotNet.CodeAnalysis , Microsoft.DotNet.Build.Tasks.Workloads , Microsoft.DotNet.Build.Tasks.Templating , Microsoft.DotNet.Build.Tasks.TargetFramework , Microsoft.DotNet.Build.Tasks.Packaging , Microsoft.DotNet.Build.Tasks.Installers , Microsoft.DotNet.Build.Tasks.Feed , Microsoft.DotNet.Build.Tasks.Archives , Microsoft.DotNet.Arcade.Sdk , Microsoft.DotNet.ApiCompat , Microsoft.DotNet.XUnitExtensions , Microsoft.DotNet.GenAPI , Microsoft.DotNet.VersionTools.Tasks , Microsoft.DotNet.GenFacades , Microsoft.DotNet.SharedFramework.Sdk , Microsoft.DotNet.RemoteExecutor , Microsoft.DotNet.PackageTesting , Microsoft.DotNet.Helix.Sdk
 From Version 2.5.1-beta.22255.2 -> To Version 2.5.1-beta.22274.7

* Update dependencies from https://github.com/dotnet/arcade build 20220525.1

Microsoft.DotNet.XUnitConsoleRunner , Microsoft.DotNet.CodeAnalysis , Microsoft.DotNet.Build.Tasks.Workloads , Microsoft.DotNet.Build.Tasks.Templating , Microsoft.DotNet.Build.Tasks.TargetFramework , Microsoft.DotNet.Build.Tasks.Packaging , Microsoft.DotNet.Build.Tasks.Installers , Microsoft.DotNet.Build.Tasks.Feed , Microsoft.DotNet.Build.Tasks.Archives , Microsoft.DotNet.Arcade.Sdk , Microsoft.DotNet.ApiCompat , Microsoft.DotNet.XUnitExtensions , Microsoft.DotNet.GenAPI , Microsoft.DotNet.VersionTools.Tasks , Microsoft.DotNet.GenFacades , Microsoft.DotNet.SharedFramework.Sdk , Microsoft.DotNet.RemoteExecutor , Microsoft.DotNet.PackageTesting , Microsoft.DotNet.Helix.Sdk
 From Version 2.5.1-beta.22255.2 -> To Version 2.5.1-beta.22275.1

* Update dependencies from https://github.com/dotnet/arcade build 20220525.2

Microsoft.DotNet.XUnitConsoleRunner , Microsoft.DotNet.CodeAnalysis , Microsoft.DotNet.Build.Tasks.Workloads , Microsoft.DotNet.Build.Tasks.Templating , Microsoft.DotNet.Build.Tasks.TargetFramework , Microsoft.DotNet.Build.Tasks.Packaging , Microsoft.DotNet.Build.Tasks.Installers , Microsoft.DotNet.Build.Tasks.Feed , Microsoft.DotNet.Build.Tasks.Archives , Microsoft.DotNet.Arcade.Sdk , Microsoft.DotNet.ApiCompat , Microsoft.DotNet.XUnitExtensions , Microsoft.DotNet.GenAPI , Microsoft.DotNet.VersionTools.Tasks , Microsoft.DotNet.GenFacades , Microsoft.DotNet.SharedFramework.Sdk , Microsoft.DotNet.RemoteExecutor , Microsoft.DotNet.PackageTesting , Microsoft.DotNet.Helix.Sdk
 From Version 2.5.1-beta.22255.2 -> To Version 2.5.1-beta.22275.2

* Update dependencies from https://github.com/dotnet/arcade build 20220526.1

Microsoft.DotNet.ApiCompat , Microsoft.DotNet.Arcade.Sdk , Microsoft.DotNet.Build.Tasks.Archives , Microsoft.DotNet.Build.Tasks.Feed , Microsoft.DotNet.Build.Tasks.Installers , Microsoft.DotNet.Build.Tasks.Packaging , Microsoft.DotNet.Build.Tasks.TargetFramework , Microsoft.DotNet.Build.Tasks.Templating , Microsoft.DotNet.Build.Tasks.Workloads , Microsoft.DotNet.CodeAnalysis , Microsoft.DotNet.GenAPI , Microsoft.DotNet.GenFacades , Microsoft.DotNet.Helix.Sdk , Microsoft.DotNet.PackageTesting , Microsoft.DotNet.RemoteExecutor , Microsoft.DotNet.SharedFramework.Sdk , Microsoft.DotNet.VersionTools.Tasks , Microsoft.DotNet.XUnitConsoleRunner , Microsoft.DotNet.XUnitExtensions
 From Version 7.0.0-beta.22255.2 -> To Version 7.0.0-beta.22276.1

* Update dependencies from https://github.com/dotnet/arcade build 20220530.2

Microsoft.DotNet.ApiCompat , Microsoft.DotNet.Arcade.Sdk , Microsoft.DotNet.Build.Tasks.Archives , Microsoft.DotNet.Build.Tasks.Feed , Microsoft.DotNet.Build.Tasks.Installers , Microsoft.DotNet.Build.Tasks.Packaging , Microsoft.DotNet.Build.Tasks.TargetFramework , Microsoft.DotNet.Build.Tasks.Templating , Microsoft.DotNet.Build.Tasks.Workloads , Microsoft.DotNet.CodeAnalysis , Microsoft.DotNet.GenAPI , Microsoft.DotNet.GenFacades , Microsoft.DotNet.Helix.Sdk , Microsoft.DotNet.PackageTesting , Microsoft.DotNet.RemoteExecutor , Microsoft.DotNet.SharedFramework.Sdk , Microsoft.DotNet.VersionTools.Tasks , Microsoft.DotNet.XUnitConsoleRunner , Microsoft.DotNet.XUnitExtensions
 From Version 7.0.0-beta.22255.2 -> To Version 7.0.0-beta.22280.2

* Update dependencies from https://github.com/dotnet/arcade build 20220531.1

Microsoft.DotNet.ApiCompat , Microsoft.DotNet.Arcade.Sdk , Microsoft.DotNet.Build.Tasks.Archives , Microsoft.DotNet.Build.Tasks.Feed , Microsoft.DotNet.Build.Tasks.Installers , Microsoft.DotNet.Build.Tasks.Packaging , Microsoft.DotNet.Build.Tasks.TargetFramework , Microsoft.DotNet.Build.Tasks.Templating , Microsoft.DotNet.Build.Tasks.Workloads , Microsoft.DotNet.CodeAnalysis , Microsoft.DotNet.GenAPI , Microsoft.DotNet.GenFacades , Microsoft.DotNet.Helix.Sdk , Microsoft.DotNet.PackageTesting , Microsoft.DotNet.RemoteExecutor , Microsoft.DotNet.SharedFramework.Sdk , Microsoft.DotNet.VersionTools.Tasks , Microsoft.DotNet.XUnitConsoleRunner , Microsoft.DotNet.XUnitExtensions
 From Version 7.0.0-beta.22255.2 -> To Version 7.0.0-beta.22281.1

* Update dependencies from https://github.com/dotnet/arcade build 20220601.2

Microsoft.DotNet.ApiCompat , Microsoft.DotNet.Arcade.Sdk , Microsoft.DotNet.Build.Tasks.Archives , Microsoft.DotNet.Build.Tasks.Feed , Microsoft.DotNet.Build.Tasks.Installers , Microsoft.DotNet.Build.Tasks.Packaging , Microsoft.DotNet.Build.Tasks.TargetFramework , Microsoft.DotNet.Build.Tasks.Templating , Microsoft.DotNet.Build.Tasks.Workloads , Microsoft.DotNet.CodeAnalysis , Microsoft.DotNet.GenAPI , Microsoft.DotNet.GenFacades , Microsoft.DotNet.Helix.Sdk , Microsoft.DotNet.PackageTesting , Microsoft.DotNet.RemoteExecutor , Microsoft.DotNet.SharedFramework.Sdk , Microsoft.DotNet.VersionTools.Tasks , Microsoft.DotNet.XUnitConsoleRunner , Microsoft.DotNet.XUnitExtensions
 From Version 7.0.0-beta.22255.2 -> To Version 7.0.0-beta.22301.2

* Update dependencies from https://github.com/dotnet/arcade build 20220606.1

Microsoft.DotNet.ApiCompat , Microsoft.DotNet.Arcade.Sdk , Microsoft.DotNet.Build.Tasks.Archives , Microsoft.DotNet.Build.Tasks.Feed , Microsoft.DotNet.Build.Tasks.Installers , Microsoft.DotNet.Build.Tasks.Packaging , Microsoft.DotNet.Build.Tasks.TargetFramework , Microsoft.DotNet.Build.Tasks.Templating , Microsoft.DotNet.Build.Tasks.Workloads , Microsoft.DotNet.CodeAnalysis , Microsoft.DotNet.GenAPI , Microsoft.DotNet.GenFacades , Microsoft.DotNet.Helix.Sdk , Microsoft.DotNet.PackageTesting , Microsoft.DotNet.RemoteExecutor , Microsoft.DotNet.SharedFramework.Sdk , Microsoft.DotNet.VersionTools.Tasks , Microsoft.DotNet.XUnitConsoleRunner , Microsoft.DotNet.XUnitExtensions
 From Version 7.0.0-beta.22255.2 -> To Version 7.0.0-beta.22306.1

* Update dependencies from https://github.com/dotnet/arcade build 20220606.2

Microsoft.DotNet.ApiCompat , Microsoft.DotNet.Arcade.Sdk , Microsoft.DotNet.Build.Tasks.Archives , Microsoft.DotNet.Build.Tasks.Feed , Microsoft.DotNet.Build.Tasks.Installers , Microsoft.DotNet.Build.Tasks.Packaging , Microsoft.DotNet.Build.Tasks.TargetFramework , Microsoft.DotNet.Build.Tasks.Templating , Microsoft.DotNet.Build.Tasks.Workloads , Microsoft.DotNet.CodeAnalysis , Microsoft.DotNet.GenAPI , Microsoft.DotNet.GenFacades , Microsoft.DotNet.Helix.Sdk , Microsoft.DotNet.PackageTesting , Microsoft.DotNet.RemoteExecutor , Microsoft.DotNet.SharedFramework.Sdk , Microsoft.DotNet.VersionTools.Tasks , Microsoft.DotNet.XUnitConsoleRunner , Microsoft.DotNet.XUnitExtensions
 From Version 7.0.0-beta.22255.2 -> To Version 7.0.0-beta.22306.2

* Update dependencies from https://github.com/dotnet/arcade build 20220608.5

Microsoft.DotNet.ApiCompat , Microsoft.DotNet.Arcade.Sdk , Microsoft.DotNet.Build.Tasks.Archives , Microsoft.DotNet.Build.Tasks.Feed , Microsoft.DotNet.Build.Tasks.Installers , Microsoft.DotNet.Build.Tasks.Packaging , Microsoft.DotNet.Build.Tasks.TargetFramework , Microsoft.DotNet.Build.Tasks.Templating , Microsoft.DotNet.Build.Tasks.Workloads , Microsoft.DotNet.CodeAnalysis , Microsoft.DotNet.GenAPI , Microsoft.DotNet.GenFacades , Microsoft.DotNet.Helix.Sdk , Microsoft.DotNet.PackageTesting , Microsoft.DotNet.RemoteExecutor , Microsoft.DotNet.SharedFramework.Sdk , Microsoft.DotNet.VersionTools.Tasks , Microsoft.DotNet.XUnitConsoleRunner , Microsoft.DotNet.XUnitExtensions
 From Version 7.0.0-beta.22255.2 -> To Version 7.0.0-beta.22308.5
Co-authored-by: Ndotnet-maestro[bot] <dotnet-maestro[bot]@users.noreply.github.com>
Co-authored-by: NPremek Vysoky <premek.vysoky@microsoft.com>
Co-authored-by: NLarry Ewing <lewing@microsoft.com>

* Fix Crossgen2 PDB generator

During my perf investigation work I have found out that PDB emitter
in Crossgen2 is broken. I tracked this down to the change

https://github.com/dotnet/runtime/commit/fdf6485c800ec580656d7491795e10881d493afb#diff-24e48862e3b82f52e7fa04f22700b1c976a012bfeb08a246406f4e5ec579699b

that caused two behavioral changes in the PDB emitter:

1) The logic around QueryPDBNameEx got refactored to use a char[]
instead of a StringBuilder and that silently caused _pdbFilePath
to be set to the string "System.Char[]" instead of the actual path
(cf PdbWriter.cs#221 in the quoted commit).

2) The COM wrapper refactoring ended up bumping the refcount
on the _ngenWriter by one so that it never got actually closed
and properly flushed; due to this the resulting PDB was invalid.

Thanks

Tomas

VN was retaining the precise handle types when applying arithmetic
operations to handles. This meant that we could not rely on handles of
types like GTF_ICON_METHOD_HDL actually containing an embedded method
handle after constant propagation.

This change generalizes the handle type to GTF_ICON_CONST_PTR or
GTF_ICON_GLOBAL_PTR whenever VN does anything that semantically
"unassociates" the icon from the specialized handle type.

```
[06:37:05] fail: [FAIL] System.Diagnostics.Tests.StopwatchTests.DebuggerAttributesValid
[06:37:05] info: System.InvalidOperationException : Expected one DebuggerDisplayAttribute on System.Diagnostics.Stopwatch.
[06:37:05] info:    at System.Diagnostics.DebuggerAttributes.ValidateDebuggerDisplayReferences(Object obj)
[06:37:05] info:    at System.Diagnostics.Tests.StopwatchTests.DebuggerAttributesValid()
[06:37:05] info:    at System.Reflection.MethodInvoker.InterpretedInvoke(Object , Span`1 , BindingFlags )
```

Fixed by preserving the `DebuggerDisplayAttribute`.

.. `EnableAggressiveTrimming=true`, since the tests are not expected to
be trim-safe.

Based on @vitek-karas' suggestion.

* Enable nullable for Microsoft.Bcl.AsyncInterfaces

* Apply suggestions from code review
Co-authored-by: NEric Erhardt <eric.erhardt@microsoft.com>
Co-authored-by: NEric Erhardt <eric.erhardt@microsoft.com>