Move helper types to separate file

Author: captainsafia

src/Http/Http.Extensions/gen/StaticRouteHandlerModel/EndpointParameter.cs

@@ -586,32 +586,3 @@ public override int GetHashCode()
         return hashCode.ToHashCode();
     }
 }
-
-internal sealed class ParameterLookupKey
-{
-    public ParameterLookupKey(string name, ITypeSymbol type)
-    {
-        Name = name;
-        Type = type;
-    }
-
-    public string Name { get; }
-    public ITypeSymbol Type { get; }
-
-    public override int GetHashCode()
-    {
-        return StringComparer.OrdinalIgnoreCase.GetHashCode(Name);
-    }
-
-    public override bool Equals([NotNullWhen(true)] object? obj)
-    {
-        if (obj is ParameterLookupKey other)
-        {
-            return SymbolEqualityComparer.Default.Equals(Type, other.Type) &&
-                string.Equals(Name, other.Name, StringComparison.OrdinalIgnoreCase);
-        }
-        return false;
-    }
-}
-
-internal record ConstructorParameter(IPropertySymbol Property, IParameterSymbol? Parameter);

src/Http/Http.Extensions/gen/StaticRouteHandlerModel/Model/ConstructorParameter.cs

@@ -0,0 +1,7 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+using Microsoft.CodeAnalysis;
+
+namespace Microsoft.AspNetCore.Http.RequestDelegateGenerator.StaticRouteHandlerModel;
+
+internal record ConstructorParameter(IPropertySymbol Property, IParameterSymbol? Parameter);

src/Http/Http.Extensions/gen/StaticRouteHandlerModel/Model/ParameterLookupKey.cs

@@ -0,0 +1,35 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+using System;
+using System.Diagnostics.CodeAnalysis;
+using Microsoft.CodeAnalysis;
+
+namespace Microsoft.AspNetCore.Http.RequestDelegateGenerator.StaticRouteHandlerModel;
+
+internal sealed class ParameterLookupKey
+{
+    public ParameterLookupKey(string name, ITypeSymbol type)
+    {
+        Name = name;
+        Type = type;
+    }
+
+    public string Name { get; }
+    public ITypeSymbol Type { get; }
+
+    public override int GetHashCode()
+    {
+        return StringComparer.OrdinalIgnoreCase.GetHashCode(Name);
+    }
+
+    public override bool Equals([NotNullWhen(true)] object? obj)
+    {
+        if (obj is ParameterLookupKey other)
+        {
+            return SymbolEqualityComparer.Default.Equals(Type, other.Type) &&
+                string.Equals(Name, other.Name, StringComparison.OrdinalIgnoreCase);
+        }
+        return false;
+    }
+}