Make sure XmlDocCommentCompletionProvider works with records

[Youssef1313]

As a follow-up to #52737

Also when reordering parameters, such as what currently happens with methods:

roslyn/src/EditorFeatures/CSharpTest/ReorderParameters/ReorderParametersTests.cs

Lines 427 to 455 in 91571a3

	[Fact, Trait(Traits.Feature, Traits.Features.ReorderParameters)]
	public void ReorderParamTagsInDocComments_SingleLineDocComments_OnIndividualLines()
	{
	var markup = @"
	public class C
	{
	/// <param name=""a""></param>
	/// <param name=""b""></param>
	/// <param name=""c""></param>
	void $$Goo(int a, int b, int c)
	{
	}
	}";
	var permutation = new[] { 2, 1, 0 };
	var updatedCode = @"
	public class C
	{
	/// <param name=""c""></param>
	/// <param name=""b""></param>
	/// <param name=""a""></param>
	void Goo(int c, int b, int a)
	{
	}
	}";
	TestReorderParameters(LanguageNames.CSharp, markup, permutation: permutation, expectedUpdatedInvocationDocumentCode: updatedCode);
	}

@jcouv, This may require parallel record structs work.

[jinujoseph]

cc @CyrusNajmabadi

[Youssef1313]

I'm working on this.