C#: Convert System.Xml.XmlNamedNodeMap flow to CSV format.

Author: michaelnebel

csharp/ql/lib/semmle/code/csharp/dataflow/ExternalFlow.qll

@@ -100,6 +100,7 @@ private module Frameworks {
   private import semmle.code.csharp.frameworks.JsonNET
   private import semmle.code.csharp.frameworks.system.IO
   private import semmle.code.csharp.frameworks.system.io.Compression
+  private import semmle.code.csharp.frameworks.system.Xml
 }
 
 /**

csharp/ql/lib/semmle/code/csharp/dataflow/LibraryTypeDataFlow.qll

@@ -1825,19 +1825,6 @@ class SystemXmlXmlNodeFlow extends LibraryTypeDataFlow, SystemXmlXmlNodeClass {
   }
 }
 
-/** Data flow for `System.Xml.XmlNamedNodeMap`. */
-class SystemXmlXmlNamedNodeMapFlow extends LibraryTypeDataFlow, SystemXmlXmlNamedNodeMapClass {
-  override predicate callableFlow(
-    CallableFlowSource source, CallableFlowSink sink, SourceDeclarationCallable c,
-    boolean preservesValue
-  ) {
-    c = this.getGetNamedItemMethod() and
-    source = TCallableFlowSourceQualifier() and
-    sink = TCallableFlowSinkReturn() and
-    preservesValue = true
-  }
-}
-
 /**
  * Custom flow through `StringValues` library class.
  */

csharp/ql/lib/semmle/code/csharp/frameworks/system/Xml.qll

@@ -3,6 +3,7 @@
 import csharp
 private import semmle.code.csharp.frameworks.System
 private import semmle.code.csharp.dataflow.DataFlow3
+private import semmle.code.csharp.dataflow.ExternalFlow
 
 /** The `System.Xml` namespace. */
 class SystemXmlNamespace extends Namespace {
@@ -115,6 +116,17 @@ class SystemXmlXmlNamedNodeMapClass extends Class {
   }
 }
 
+/** Data flow for `System.Xml.XmlNamedNodeMap`. */
+private class SystemXmlXmlNamedNodeMapClassFlowModelCsv extends SummaryModelCsv {
+  override predicate row(string row) {
+    row =
+      [
+        "System.Xml;XmlNamedNodeMap;false;GetNamedItem;(System.String);;Argument[-1];ReturnValue;value",
+        "System.Xml;XmlNamedNodeMap;false;GetNamedItem;(System.String,System.String);;Argument[-1];ReturnValue;value"
+      ]
+  }
+}
+
 /** An enum constant in `System.Xml.ValidationType`. */
 class SystemXmlValidationType extends EnumConstant {
   SystemXmlValidationType() {