[Bug] Rename popup for JS/TS private members does not include the `#` character

Reproducible in vscode.dev or in VS Code Desktop?

• Not reproducible in vscode.dev or VS Code Desktop

Reproducible in the monaco editor playground?

• Not reproducible in the monaco editor playground

Monaco Editor Playground Link

https://microsoft.github.io/monaco-editor/playground.html?source=v0.55.1#XQAAAAJQAQAAAAAAAABBqQkHQ5NjdMjwa-jY7SIQ9S7DNlzs5W-mwj0fe1ZCDRFc9ws9XQE0SJE1jc2VKxhaLFIw9vEWSxW3yscwzS98RgmSaumWUF-TBOsVJ4S4FwfCDQb5-2uUHXTVAefbVSd9IzaZ_vv9VR9KugsKikU_wkLK9jT_o8SJzPv4k8g9Sb1c0Vhw1m9L2V6fITJixjKOWlQkasTOk0BKGvRJOQpwxIb5XQVsN9NClXRLqHLhHyOVXnz3_P8-kZ6F3fn06j7Tic3EGUaUHEQKzIn7jX0X_CWXbKf2_aI6WLoTJJPezM77MJ743Iklw8Zgl3J6iPXuJHLFtfDPDfEeq8UtvEvIaXPLgBg6R_7VlnTat76OG5W7-9CkFg

Monaco Editor Playground Code

const value = /* set from `myEditor.getModel()`: */ `class Foo {
	#test() {
		
	}
}`;

// Hover on each property to see its docs!
const myEditor = monaco.editor.create(document.getElementById("container"), {
	value,
	language: "javascript",
	automaticLayout: true,
});

Reproduction Steps

Put the cursor on the method name #test and press F2 to rename

Actual (Problematic) Behavior

The # is not included in the popup text field, which means after the rename the method/field might be accidentally made public if you forget to add the # back.

Expected Behavior

The # is included in the text field like in VSCode:

Additional Context

No response

Start with the Monaco Editor Playground reproduction and the F2 rename entry point for the JavaScript class containing #test. Trace how the rename popup text is populated for private members, then verify that the field retains the # and that renaming does not make the member public.