Merge master to features/ioperation

changed logger to log errors from all analyzers not just first analyzer

Add IOperation support for C# patterns

Merge master to features/ioperation

made diagnostic engine to verify span given to diagnostic from analyz…

C# Implicit IConversionExpression Tests

Merge master to features/ioperation

Optimize fast path for "Use 'var'" code style

Merge master to features/ioperation

Update IDE Test Plan with 15.3 features

Properly push events to the OOP side so that we know when things like solution-closing happens.
Fixes #19768

Include Commit in our NuGet package

made diagnostic engine to verify span given to diagnostic from analyzers. and added explicit check in tagger for out of range

* dotnet/features/ioperation: (286 commits)
  Remove unused Operation class.
  Delegate UnboundLambda to BoundLambda conversion to the semantic model.
  Added comment that operationkind 0x205 is open for future usage.
  Skip repl VSI tests
  Disable integration tests while investigating (#20216)
  fixing "integration test failing due to license key dialog showing"
  Fixed accessibility of tests.
  Added tests for unbound lambdas in the operation tree.
  Remove IUnboundLambdaExpression from IOperation API, return an ILambdaExpression for UnboundLambda nodes.
  Address PR feedback
  added sealed
  Move language settings after SDK import
  removed Operation cache. due to how we changed to hold onto child (Lazy(Of T)), we no longer need cache for children for a bound node
  Add support for ILocalFunctionStatement
  Add test.
  Be resilient to running with System.IEquatable can not be found.
  Fix race with boosting OOP priority.  Also, ensure FindRef calls are boosted.
  Fix test
  some clean up
  EnC test refactoring (#20061)
  ...

Move over to the new ITextImage platform API.

Some performance and reliability fixes around file change tracking

Fixes #19927