* Add new Mono embedding API to consume binary runtimeconfig format

* Merge properties

* Remove redundant macro

* Move string process to the install function

* Check if runtime_config_arg exist

* Move file processing to install function

* Update src/mono/mono/metadata/appdomain.c
Co-authored-by: NAleksey Kliger (λgeek) <akliger@gmail.com>

* Update src/mono/mono/metadata/appdomain.c
Co-authored-by: NAleksey Kliger (λgeek) <akliger@gmail.com>

* Update src/mono/mono/metadata/appdomain.c
Co-authored-by: NAleksey Kliger (λgeek) <akliger@gmail.com>

* Update src/mono/mono/metadata/appdomain.c
Co-authored-by: NRyan Lucia <ryan@luciaonline.net>

* Update src/mono/mono/metadata/appdomain.c
Co-authored-by: NRyan Lucia <ryan@luciaonline.net>

* Update src/mono/mono/metadata/appdomain.c
Co-authored-by: NRyan Lucia <ryan@luciaonline.net>

* Update src/mono/mono/metadata/appdomain.c
Co-authored-by: NRyan Lucia <ryan@luciaonline.net>

* Update src/mono/mono/metadata/appdomain.c
Co-authored-by: NRyan Lucia <ryan@luciaonline.net>

* Update src/mono/mono/metadata/appdomain.c
Co-authored-by: NRyan Lucia <ryan@luciaonline.net>

* Update src/mono/mono/metadata/appdomain.c
Co-authored-by: NRyan Lucia <ryan@luciaonline.net>

* Remove redundant intermediate copy

* Remove extra memory allocation

* Update src/mono/mono/mini/mono-private-unstable.h
Co-authored-by: NRyan Lucia <ryan@luciaonline.net>
Co-authored-by: NAleksey Kliger (λgeek) <akliger@gmail.com>
Co-authored-by: NRyan Lucia <ryan@luciaonline.net>

[main] Update dependencies from dotnet/runtime

* Lazily-allocate rarely needed ValueTask.s_canceledTask

* Update ValueTask.cs

This isn't a big deal as it's once per websocket connection, but it annoys me every time I see the unnecessary waste in a trace.  Previously this would allocate:
1. A byte[] for the bytes from the guid
2. A base64-encoded string for (1)
3. A string concatenating (2) and the known server guid
4. A byte[] containing the bytes from (3)
5. A byte[] containing the SHA1-hashed bytes of (4)
6. A base64-encoded string of (5)

Now, it only allocates (2) and (6).

- The default DI container uses arrays under the covers for IEnumerable<T> so we can take advantage of that to avoid allocating an array when storing a list of services and when enumerating them (when happens more often for OptionsFactory).
- If the IEnumerable<T> isn't an array, we will convert it into one, paying that cost once instead of allocating an enumerator on calls to Create.
- Also removed the IOptionsChangeTokenSource<TOptions> field from OptionsMonitor since it isn't used more than once.

* sourcelink test

* Test sourcelink.

* Fix sourcelink.

* Change test name

* Move test to another file.

* Rollback GetSourceLinkUrl

* Changing to make trying to get from a Windows url running on Linux.

* Seal private classes in corelib

* Seal internal classes in corelib

SuperPMI logging was doing a lot of work even if no log output was
asked for. For example, there are LogDebug() calls in the recordRelocation
path that were doing all the printf work and memory allocation even though
we were not logging anything.

Add a fast-path return to avoid all this unnecessary work.

The problem manifested as an infinite loop during the StackLevelSetter phase
in the release build SuperPMI replay of the tests, but also occurs as a
normal release build test run of the varargsupport.il test.

The issue is we had corrupt LIR gtPrev links, with a cycle. The problem had
nothing to do with StackLevelSetter -- it just happened to be the first phase
that iterated in reverse over the gtPrev links.

The corruption was introduced in the importer, in
`verConvertBBToThrowVerificationException`. It required a verification failure
in a filter (possibly also catch) clause where the JIT would throw away the
currently imported code and convert the block to a call to the verification
failure helper.

This was a classic case of important, functional code being under `#ifdef DEBUG`
that is needed in non-DEBUG as well.

The result was we would end up adding an `ASG(LCL_VAR, CATCH_ARG)` to the statement
list twice, with the same `CATCH_ARG` node.

Fixes #45580

* Another approach for PR #45124

* After discussion with @radical, decided to add this comment and use mono_runtime_printf_err.

* Remove unnecessary property setting in corerun.

* Remove unused get_envvar_as_boolean()

There is a test the custom constant attribute assigns the default value to Type.Missing parameter.

Apply workaround recommended by VC++ team

* Resolve new ILLink warnings in Microsoft.Extensions.DependencyInjection

These two new warnings came in because of:

1. #48823
2. #47938

* Use GetProperty.

[main] Update dependencies from dotnet/xharness

Microsoft.NET.ILLink.Tasks
 From Version 6.0.100-preview.2.21169.2 -> To Version 6.0.100-preview.2.21169.4
Co-authored-by: Ndotnet-maestro[bot] <dotnet-maestro[bot]@users.noreply.github.com>

* Fix incorrect GTF_CALL_M_SPECIAL_INTRINSIC usage

* Update importer.cpp

These types are reflection emitted and will be null without ref emit.

* remove unused duplicate in .gitignore

* delete "!pal/prebuilt/idl/*_i.c"

Fixes #49684

* [wasm] Use g_error to emit errors in mini-wasm.c, so they show up with traces in js console

* address review feedback

vargaz: printf in JIT code is mapped to the platform logging operation, so this one can stay as it is.

* Use g_printerr instead of g_error, as suggested by feedback

* Update dependencies from https://github.com/mono/linker build 20210318.1

Microsoft.NET.ILLink.Tasks
 From Version 6.0.100-preview.2.21167.1 -> To Version 6.0.100-preview.2.21168.1

* Update dependencies from https://github.com/mono/linker build 20210319.1

Microsoft.NET.ILLink.Tasks
 From Version 6.0.100-preview.2.21167.1 -> To Version 6.0.100-preview.2.21169.1

* Update mono/linker to 6.0.100-preview.2.21169.2
Co-authored-by: Ndotnet-maestro[bot] <dotnet-maestro[bot]@users.noreply.github.com>
Co-authored-by: NEric Erhardt <eric.erhardt@microsoft.com>

- Add dependency on newly compiled crossgen2 binaries
- Will force recompile of S.P.C if the ready to run compiler changes in addition to recompiling if S.P.C changes

* Disable Github45929 regression test

It has been intermittently failing on a few test runs. Will enable once fixed.

* Fix extra '/'

The diffs are in D:\Sergey\logs\diff.liveness.txt