Microsoft.CodeAnalysis.UseNullPropagation.AbstractUseNullPropagationDiagnosticAnalyzer<TSyntaxKind, TExpressionSyntax, TStatementSyntax, TConditionalExpressionSyntax, TBinaryExpressionSyntax, TInvocationExpressionSyntax, TConditionalAccessExpressionSyntax, TElementAccessExpressionSyntax, TMemberAccessExpressionSyntax, TIfStatementSyntax, TExpressionStatementSyntax>.AnalyzeIfStatement(Microsoft.CodeAnalysis.SemanticModel, Microsoft.CodeAnalysis.IMethodSymbol, TIfStatementSyntax, System.Threading.CancellationToken)