Make sealed

Author: pranavkm

src/Mvc/Mvc.TagHelpers/ref/Microsoft.AspNetCore.Mvc.TagHelpers.netcoreapp.cs

@@ -106,7 +106,7 @@ public CacheTagHelperOptions() { }
         public long SizeLimit { [System.Runtime.CompilerServices.CompilerGeneratedAttribute]get { throw null; } [System.Runtime.CompilerServices.CompilerGeneratedAttribute]set { } }
     }
     [Microsoft.AspNetCore.Razor.TagHelpers.HtmlTargetElementAttribute("component", Attributes="type", TagStructure=Microsoft.AspNetCore.Razor.TagHelpers.TagStructure.WithoutEndTag)]
-    public partial class ComponentTagHelper : Microsoft.AspNetCore.Razor.TagHelpers.TagHelper
+    public sealed partial class ComponentTagHelper : Microsoft.AspNetCore.Razor.TagHelpers.TagHelper
     {
         public ComponentTagHelper() { }
         [Microsoft.AspNetCore.Razor.TagHelpers.HtmlAttributeNameAttribute("type")]

src/Mvc/Mvc.TagHelpers/src/ComponentTagHelper.cs

@@ -15,7 +15,7 @@ namespace Microsoft.AspNetCore.Mvc.TagHelpers
     /// A <see cref="TagHelper"/> that renders a Razor component.
     /// </summary>
     [HtmlTargetElement("component", Attributes = ComponentTypeName, TagStructure = TagStructure.WithoutEndTag)]
-    public class ComponentTagHelper : TagHelper
+    public sealed class ComponentTagHelper : TagHelper
     {
         private const string ComponentParameterName = "params";
         private const string ComponentParameterPrefix = "param-";