C#: move OData test types into test/resources/stubs

Per review feedback on #22384, keep the ODataActionParameters/Delta<T>
stub implementations out of the test .cs file and store them in
test/resources/stubs instead, following the pattern used by other
frameworks (e.g. JsonNET, Aws). The test now loads the stub project
via an options file and relies on no .dll files.

Author: hugo-syn

csharp/ql/test/library-tests/frameworks/OData/OData.cs

@@ -1,29 +1,3 @@
-using System.Collections.Generic;
-
-namespace Microsoft.AspNet.OData
-{
-    public class ODataActionParameters : Dictionary<string, object>
-    {
-    }
-
-    public class Delta<TStructuralType> where TStructuralType : class
-    {
-        private TStructuralType instance;
-
-        public Delta() { instance = default(TStructuralType); }
-
-        public TStructuralType GetInstance() => instance;
-
-        public void Patch(TStructuralType original) { }
-
-        public void Put(TStructuralType original) { }
-
-        public void CopyChangedValues(TStructuralType original) { }
-
-        public void CopyUnchangedValues(TStructuralType original) { }
-    }
-}
-
 namespace Test
 {
     using Microsoft.AspNet.OData;

csharp/ql/test/library-tests/frameworks/OData/OData.expected

@@ -1,9 +1,9 @@
-| OData.cs:72:55:72:64 | parameters | OData.cs:75:18:75:23 | access to local variable entity |
-| OData.cs:72:55:72:64 | parameters | OData.cs:76:18:76:28 | access to property Name |
-| OData.cs:72:55:72:64 | parameters | OData.cs:77:18:77:31 | access to property Content |
-| OData.cs:72:55:72:64 | parameters | OData.cs:78:18:78:38 | access to property Owner |
-| OData.cs:72:55:72:64 | parameters | OData.cs:81:22:81:28 | access to property Owner |
-| OData.cs:85:55:85:64 | parameters | OData.cs:91:26:91:35 | access to property Label |
-| OData.cs:85:55:85:64 | parameters | OData.cs:98:22:98:34 | access to property Category |
-| OData.cs:102:39:102:43 | delta | OData.cs:105:18:105:30 | access to property Name |
-| OData.cs:108:45:108:49 | delta | OData.cs:111:18:111:23 | access to property Name |
+| OData.cs:46:55:46:64 | parameters | OData.cs:49:18:49:23 | access to local variable entity |
+| OData.cs:46:55:46:64 | parameters | OData.cs:50:18:50:28 | access to property Name |
+| OData.cs:46:55:46:64 | parameters | OData.cs:51:18:51:31 | access to property Content |
+| OData.cs:46:55:46:64 | parameters | OData.cs:52:18:52:38 | access to property Owner |
+| OData.cs:46:55:46:64 | parameters | OData.cs:55:22:55:28 | access to property Owner |
+| OData.cs:59:55:59:64 | parameters | OData.cs:65:26:65:35 | access to property Label |
+| OData.cs:59:55:59:64 | parameters | OData.cs:72:22:72:34 | access to property Category |
+| OData.cs:76:39:76:43 | delta | OData.cs:79:18:79:30 | access to property Name |
+| OData.cs:82:45:82:49 | delta | OData.cs:85:18:85:23 | access to property Name |

csharp/ql/test/library-tests/frameworks/OData/options

@@ -0,0 +1,2 @@
+semmle-extractor-options: /nostdlib /noconfig
+semmle-extractor-options: --load-sources-from-project:${testdir}/../../../resources/stubs/Microsoft.AspNet.OData/7.7.5/Microsoft.AspNet.OData.csproj

csharp/ql/test/resources/stubs/Microsoft.AspNet.OData/7.7.5/Microsoft.AspNet.OData.cs

@@ -0,0 +1,19 @@
+// This file contains auto-generated code.
+// Generated from `Microsoft.AspNet.OData, Version=7.7.5.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35`.
+namespace Microsoft.AspNet.OData
+{
+    public class ODataActionParameters : System.Collections.Generic.Dictionary<string, object>
+    {
+        public ODataActionParameters() => throw null;
+    }
+
+    public class Delta<TStructuralType> where TStructuralType : class
+    {
+        public Delta() => throw null;
+        public TStructuralType GetInstance() => throw null;
+        public void Patch(TStructuralType original) => throw null;
+        public void Put(TStructuralType original) => throw null;
+        public void CopyChangedValues(TStructuralType original) => throw null;
+        public void CopyUnchangedValues(TStructuralType original) => throw null;
+    }
+}

csharp/ql/test/resources/stubs/Microsoft.AspNet.OData/7.7.5/Microsoft.AspNet.OData.csproj

@@ -0,0 +1,12 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
+    <OutputPath>bin\</OutputPath>
+    <AppendTargetFrameworkToOutputPath>false</AppendTargetFrameworkToOutputPath>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="../../_frameworks/Microsoft.NETCore.App/Microsoft.NETCore.App.csproj" />
+  </ItemGroup>
+</Project>