This change fixes two differences between old and new crossgen in the
getCallInfo method. Direct calls to abstract methods were being compiled
as if they were possible and lead to runtime crash in the call chain
from the PreStubWorker.

Fix missing unbox flag on method handle for struct methods

* Delete common upload artifact template

* Move upload artifact step from coreclr to common

We force `/OPT:REF` and this is incompatible with incremental linking
(and yields a warning to that effect). To fix, explicitly disable
incremental linking.

(I couldn't find anyplace where it was explicitly enabled, so I believe
it is enabled by default with the given linker options.)

Another option would be to not force `/OPT:REF` for Checked builds.

* Adding some tests for marshalling generics.

* Updating the VM to allow marshalling blittable generic types.

* Adding comments for why certain blittable generics are blocked from being marshaled

* Removing the new IDS_EE_BADMARSHAL_BLITTABLE_GENERICS_RESTRICTION string in favor of fixing the text in IDS_EE_BADMARSHAL_GENERICS_RESTRICTION

* Updating CrossGen2 to handle marshalling blittable generics

* Add a script for generating a .sln containing all library projects

* Add a script for generating a .sln containing all library projects

The compiler is updating its handling of maybe-null values, and in doing so we're getting a bunch of new warnings.  We've not yet ingested the new compiler, but this proactively addresses the warnings for when we do.

It is just the TPA binder context now.

Remove dead code

* Move more shared components to common and move helix queues out of platform-matrix

* PR Feedback

* Add Libraries Testing framework package as inline

The existing package Microsoft.DotNet.CoreFxTesting lived in Arcade
because of no infrastructure being available to compile local tasks in
the repository. As the runtime repository now offers that we can inline
the testing framework.

* Hardcode configuration for installer.tasks

* Update ReportGenerator global tool version

* Add vstest support

* Update binary serialization blobs

Fixes Loader\classloader\generics\regressions\dev10_393447 test runtime
failure when compiled with crossgen2.

This mimicks what old crossgen does.

Fix devirtualization in crossgen2

* propogate assertions through Exception handlers.

* Add comments.

* Fix undocumented generatelayout command

* Address feedback

Port more Pinvoke fixes from the single-exe branch

This is only for arm64 musl to address #170.

* Remove some indirection when raising AssemblyResolve event
* Delete unused code

Note this is an unforutunate loss of coverage.
It ups the priority on trait based tests or fixing the root cause.

Enable warn as error in corelib as the workaround was set for VS2017 which we no longer use since we moved to VS2019 and that's the recommended toolset.

* Update links in docs/libraries

* Fix more docs/libraries links

CoreCLR subrepo build has a known existing warning coming from
pgomgr that Arcade upgrades to an error via WarnAsError. I propose
suppressing autodetection of warnings in CoreCLR build to fix this
spurious bug reproducing in release mode.

Thanks

Tomas

Fixes: #150
Follow-up tracking issue: #156 

Turns out zero length arrays are passed as a pointer to the non-existing element only when the array is passed by reference.

* Expose the PreserveSig bit on PInvokeMetadata and reject precompiling methods with HResult munging
* Parse CustomMarshaller records to avoid asserting
* Place marshalling cleanup in a new cleanup stream that runs in a finally block
* Place SafeHandle code into the cleanup stream

* Use precompiled PInvoke stubs from R2R image without a shared IL stub

This is only for images compiled with crossgen2.

Changes include some refactoring work around the signature parsing to compute marshalling requirements. We had two separate implementations after pulling the PInvoke work from the single-exe branch. Consolidated into one implementation.

* Implement instantiating and unboxing through portable stublinker code
 - Handle only the cases with register to register moves
 - Shares abi processing logic with delegate shuffle thunk creation
 - Architecture specific logic is relatively simple
 - Do not permit use of HELPERREG in computed instantiating stubs
 - Fix GetArgLoc such that it works on all architectures and OS combinations

Add a JIT stress test case for testing all of the various combinations
- Use the same calling convention test architecture that was used as part of tail call work

Rename secure delegates to wrapper delegates
- Secure delegates are no longer a feature of the runtime
- But the wrapper delegate lives on as a workaround for a weird detail of the ARM32 abi

fix volatile float/double on win-arm64   (make sure compiler does not do numeric casts)