Instructions can be found in the README file under src/Tools/CompilerBenchmarks.

Fixes #29291

CoalesceAssignment no longer considers IsChecked, as it's not necessary
for dynamic in these scenarios.
ICoalesceAssignment is no based on IAssignmentOperation.
Small logic updates as fallout from testing more dynamic conversion
scenarios.

Add explicit case clause(s) for all the bound nodes for which right now we fall back to creating operation None node. Throw from default case.

No tests are added specifically for this fix, as the new assertions would be thrown on many existing tests.
Fixes #28862

When we enabled pointer_element_access to work on fixed sized buffers
regardless of the movability of the receiver of the buffer access, we
did not repair the safety rules to prevent leaking a pointer to a
moveable variable back into the language.

This change adds a new rule, which makes the movability of a
pointer_element_access on a fixed size buffer dependent on the
movability of its receiver. This should require the use of a `fixed`
statement to prevent safety holes.

Fixes #28476

* Add API bool Compilation.IsSymbolAccessibleWithin(
            ISymbol symbol,
            ISymbol within,
            ITypeSymbol throughType = null)
Also correct comments that incorrectly imply that inaccessible methods can be a member of a method group.
Fixes https://github.com/dotnet/roslyn/issues/24518
Fixes https://github.com/dotnet/roslyn/issues/23842

Fixes #26028

* Fix discard symbol for declaration pattern

* Remove unnecessary cast

* Track enclosing symbol in data flow analysis, which might be a field or property.
Code used to assume it was (and typed it as) a method.
Fixes #19845
Fixes #27969

Added support for initial binding, dataflow passes, and the local lowering
pass for null coalescing assignment. IOperation and CFG support will come in
a follow-up PR, as will relevant semantic model testing.

* Don't produce errors on in parameters

* More tests

* PR Comments

* PR Comments

* Ref-like type parameters can return safely to external scope by ref

* Update failing test

* Document breaking change

* PR Comments

* Fixed error messages around fixed fields (#27424)

* Fixed 26688

* Fixed 26743

* Document breaking change.

* Fix build break

* PR Comments

* Fix breaking change

* Rename confusing API

* Added comment

* Typo in comment