Mark some methods internal

Co-authored-by: Patrick Meinecke <SeeminglyScience@users.noreply.github.com>

Author: andyleejordan

src/PowerShellEditorServices/Services/Symbols/SymbolsService.cs

@@ -293,7 +293,7 @@ public async Task<IEnumerable<SymbolReference>> GetDefinitionOfSymbolAsync(
         {
             List<SymbolReference> declarations = new();
             declarations.AddRange(scriptFile.References.TryGetReferences(symbol).Where(i => i.IsDeclaration));
-            if (declarations.Any())
+            if (declarations.Count > 0)
             {
                 _logger.LogDebug($"Found possible declaration in same file ${declarations}");
                 return declarations;

src/PowerShellEditorServices/Services/TextDocument/ScriptRegion.cs

@@ -14,7 +14,7 @@ namespace Microsoft.PowerShell.EditorServices.Services.TextDocument
     /// </summary>
     public sealed class ScriptRegion : IScriptExtent
     {
-        public TextEdit ToTextEdit() => new() { NewText = Text, Range = ToRange() };
+        internal TextEdit ToTextEdit() => new() { NewText = Text, Range = ToRange() };
 
         public Range ToRange()
         {
@@ -34,7 +34,7 @@ public Range ToRange()
         }
 
         // Same as PowerShell's EmptyScriptExtent
-        public bool IsEmpty()
+        internal bool IsEmpty()
         {
             return StartLineNumber == 0 && StartColumnNumber == 0
                 && EndLineNumber == 0 && EndColumnNumber == 0
@@ -43,7 +43,7 @@ public bool IsEmpty()
         }
 
         // Do not use PowerShell's ContainsLineAndColumn, it's nonsense.
-        public bool ContainsPosition(int line, int column)
+        internal bool ContainsPosition(int line, int column)
         {
             return StartLineNumber <= line && line <= EndLineNumber
                 && StartColumnNumber <= column && column <= EndColumnNumber;