Microsoft.CodeAnalysis.Shared.Utilities.AbstractSpeculationAnalyzer<TExpressionSyntax, TTypeSyntax, TAttributeSyntax, TArgumentSyntax, TForEachStatementSyntax, TThrowStatementSyntax, TInvocationExpressionSyntax, TConversion>.ConversionsAreCompatible(TExpressionSyntax, Microsoft.CodeAnalysis.ITypeSymbol, TExpressionSyntax, Microsoft.CodeAnalysis.ITypeSymbol)