Use Any instead of Count to test empty enumerable

Author: Kapil Borle

src/PowerShellEditorServices/Language/LanguageService.cs

@@ -619,7 +619,7 @@ private Ast FindSmallestStatementAst(ScriptFile scriptFile, int lineNumber, int
                 return true;
             }, true);
 
-            if (asts == null || asts.Count() == 0)
+            if (asts == null || !asts.Any())
             {
                 return null;
             }