Convert Range type to class from struct

Author: Kapil Borle

src/PowerShellEditorServices.Protocol/LanguageServer/Hover.cs

@@ -23,7 +23,7 @@ public class Hover
     {
         public MarkedString[] Contents { get; set; }
 
-        public Range? Range { get; set; }
+        public Range Range { get; set; }
     }
 
     public class HoverRequest

src/PowerShellEditorServices.Protocol/LanguageServer/TextDocument.cs

@@ -237,7 +237,7 @@ public class TextDocumentChangeEvent
         /// Gets or sets the Range where the document was changed.  Will
         /// be null if the server's TextDocumentSyncKind is Full.
         /// </summary>
-        public Range? Range { get; set; }
+        public Range Range { get; set; }
 
         /// <summary>
         /// Gets or sets the length of the Range being replaced in the
@@ -267,7 +267,7 @@ public class Position
     }
 
     [DebuggerDisplay("Start = {Start.Line}:{Start.Character}, End = {End.Line}:{End.Character}")]
-    public struct Range
+    public class Range
     {
         /// <summary>
         /// Gets or sets the starting position of the range.

src/PowerShellEditorServices.Protocol/Server/LanguageServer.cs

@@ -538,7 +538,7 @@ protected Task HandleDidChangeTextDocumentNotification(
 
                 changedFile.ApplyChange(
                     GetFileChangeDetails(
-                        textChange.Range.Value,
+                        textChange.Range,
                         textChange.Text));
 
                 changedFiles.Add(changedFile);
@@ -870,7 +870,7 @@ await editorSession
                         textDocumentPositionParams.Position.Character + 1);
 
             List<MarkedString> symbolInfo = new List<MarkedString>();
-            Range? symbolRange = null;
+            Range symbolRange = null;
 
             if (symbolDetails != null)
             {