FastExpressionCompiler.src 5.1.1

## v5.1.1. Bug-fix release - fix: #461 InvalidProgramException when null checking type by ref - fix: #462 Optimize Equality comparison with null **Full Changelog**: https://github.com/dadhi/FastExpressionCompiler/compare/v5.1.0...v5.1.1 ## v5.1.0 Small feature release - add: #458 Add Support for TryFault - fix: #460 ArgumentException when converting from object to type with explicit operator **Full Changelog**: https://github.com/dadhi/FastExpressionCompiler/compare/v5.0.3...v5.1.0 ## v5.0.3 Bug-fix release - fix: #451 Operator implicit/explicit produces InvalidProgram - fix: #455 TypeAs should return null when it cannot cast to a nullable #455 **Full Changelog**: https://github.com/dadhi/FastExpressionCompiler/compare/v5.0.2...v5.0.3 ## v5.0.2 Bug-fix release -fix: #449 MemberInit produces InvalidProgram **Full Changelog**: https://github.com/dadhi/FastExpressionCompiler/compare/v5.0.1...v5.0.2 ## v5.0.1 Bug-fix release - fix: #437 Shared variables with nested lambdas returning incorrect values - fix: #439 Support unused Field access in Block - fix: #440 Errors with simplified Switch cases - fix: #441 Fails to pass Constant as call parameter by-reference - fix: #442 TryCatch and the Goto outside problems - fix: #443 Nested Calls with Lambda Parameters Throwing NotSupportedExpressionException ## v5.0.0 Major feature release - feat: #271 Add conversion from the System Expression to the Light Expression to allow hoisted system expression embedding in the larger light expression - feat: #432 Add explicit target for .NET 9 - feat: #434 ToCSharpString should generate stable names for the unnamed variables, parameters and labels - fix: #262 Optimize OpCode.Ceq plus Branch into a single compare-and-branch - fix: #424 TryCatch expression as argument in Call expression produces invalid program - fix: #426 Directly passing a method result to another method by ref, fails with InvalidProgramException - fix: #427 CSharp output with more consistency, robustness and more understandable code - fix: #428 Expression.Switch without a default case incorrectly calls first case for unmatched values - fix: #430 TryCatch - Bad label content in ILGenerator