Add ctor in HttpValidationProblemDetails that takes a IEnumerable<KeyValuePair<string, string[]>>

Author: joegoldman2

src/Http/Http.Abstractions/src/Microsoft.AspNetCore.Http.Abstractions.csproj

@@ -37,6 +37,7 @@ Microsoft.AspNetCore.Http.HttpResponse</Description>
   <ItemGroup>
     <InternalsVisibleTo Include="Microsoft.AspNetCore.Http.Abstractions.Microbenchmarks" />
     <InternalsVisibleTo Include="Microsoft.AspNetCore.Http.Extensions" />
+    <InternalsVisibleTo Include="Microsoft.AspNetCore.Http.Results" />
   </ItemGroup>
 
   <ItemGroup>

src/Http/Http.Abstractions/src/ProblemDetails/HttpValidationProblemDetails.cs

@@ -28,6 +28,15 @@ public HttpValidationProblemDetails(IDictionary<string, string[]> errors)
     {
     }
 
+    /// <summary>
+    /// Initializes a new instance of <see cref="HttpValidationProblemDetails"/> using the specified <paramref name="errors"/>.
+    /// </summary>
+    /// <param name="errors">The validation errors.</param>
+    internal HttpValidationProblemDetails(IEnumerable<KeyValuePair<string, string[]>> errors)
+        : this(new Dictionary<string, string[]>(errors ?? throw new ArgumentNullException(nameof(errors)), StringComparer.Ordinal))
+    {
+    }
+
     private HttpValidationProblemDetails(Dictionary<string, string[]> errors)
     {
         Title = "One or more validation errors occurred.";

src/Http/Http.Results/src/Results.cs

@@ -799,7 +799,7 @@ public static IResult ValidationProblem(
         ArgumentNullException.ThrowIfNull(errors);
 
         // TypedResults.ValidationProblem() does not allow setting the statusCode so we do this manually here
-        var problemDetails = new HttpValidationProblemDetails(new Dictionary<string, string[]>(errors, StringComparer.Ordinal))
+        var problemDetails = new HttpValidationProblemDetails(errors)
         {
             Detail = detail,
             Instance = instance,

src/Http/Http.Results/src/TypedResults.cs

@@ -854,7 +854,7 @@ public static ValidationProblem ValidationProblem(
     {
         ArgumentNullException.ThrowIfNull(errors);
 
-        var problemDetails = new HttpValidationProblemDetails(new Dictionary<string, string[]>(errors))
+        var problemDetails = new HttpValidationProblemDetails(errors)
         {
             Detail = detail,
             Instance = instance,