Replace VisitCommandParameter with VisitParameter

Author: andyleejordan

src/PowerShellEditorServices/Services/Symbols/ReferenceTable.cs

@@ -90,6 +90,7 @@ private AstVisitAction AddReference(SymbolReference symbol)
                 return existing;
             });
 
-        return AstVisitAction.Continue;
+        return symbol.SymbolType is SymbolType.Parameter
+            ? AstVisitAction.SkipChildren : AstVisitAction.Continue;
     }
 }

src/PowerShellEditorServices/Services/Symbols/Vistors/SymbolVisitor.cs

@@ -68,13 +68,14 @@ public override AstVisitAction VisitFunctionDefinition(FunctionDefinitionAst fun
             isDeclaration: true));
     }
 
-    public override AstVisitAction VisitCommandParameter(CommandParameterAst commandParameterAst)
+    public override AstVisitAction VisitParameter(ParameterAst parameterAst)
     {
+        // TODO: When we add DisplayString, include the default value.
         return _action(new SymbolReference(
             SymbolType.Parameter,
-            commandParameterAst.Extent.Text,
-            commandParameterAst.Extent,
-            commandParameterAst.Extent,
+            $"${parameterAst.Name.VariablePath.UserPath}",
+            parameterAst.Name.Extent,
+            parameterAst.Extent,
             _file,
             isDeclaration: true));
     }