C#: Address review comment

hvitved · hvitved · commit 664aa8db4743 · 2019-03-27T13:32:11.000+01:00
diff --git a/csharp/extractor/Semmle.Extraction.CSharp/Entities/Attribute.cs b/csharp/extractor/Semmle.Extraction.CSharp/Entities/Attribute.cs
@@ -52,7 +52,7 @@ void ExtractAttribute(AttributeSyntax syntax, ITypeSymbol attributeClass, IEntit
                     foreach (var arg in syntax.ArgumentList.Arguments)
                     {
                         var expr = Expression.Create(cx, arg.Expression, this, child++);
-                        if (arg.NameEquals != null)
+                        if (!(arg.NameEquals is null))
                         {
                             cx.Emit(Tuples.expr_argument_name(expr, arg.NameEquals.Name.Identifier.Text));
                         }

Original file line number	Diff line number	Diff line change
`@@ -52,7 +52,7 @@ void ExtractAttribute(AttributeSyntax syntax, ITypeSymbol attributeClass, IEntit`
`52`	`52`	`foreach (var arg in syntax.ArgumentList.Arguments)`
`53`	`53`	`{`
`54`	`54`	`var expr = Expression.Create(cx, arg.Expression, this, child++);`
`55`		`- if (arg.NameEquals != null)`
	`55`	`+ if (!(arg.NameEquals is null))`
`56`	`56`	`{`
`57`	`57`	`cx.Emit(Tuples.expr_argument_name(expr, arg.NameEquals.Name.Identifier.Text));`
`58`	`58`	`}`