[Bug] messageContribute.showMessage to customize tooltip is overwritten by the default readonly message

[jieleiwang]

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=v0.37.1#XQAAAAJDAgAAAAAAAABBqQkHQ5NjdMjwa-jY7SIQ9S7DNlzs5W-mwj0fe1ZCDRFc9ws9XQE0SJE1jc2VKxhaLFIw9vEWSxW3yscw1nWJRgmSaumWUF-TBOsVJ4S4FwfCDQb5-2uUHXTVAefbVSd9IzaZ_vv9VR9KugsKimARHSWlrTPOQHROITHxmAhPXiQgCCkQKcv68Ayyw9u5FEr37To1IIX5AUg_EEfNVfIbY43Q8-5smFKh_Py18JTOWhPbL6z_hw9S2sY_OQjylAjD6GkNPpuw8pR1TQkkTS6BHPh8ijYALQ667O4wA44F07FQ8NQX-bhjp1yEDvIiT65Q599Tyvuaz5_UnI-JYqZfI7wuIdd2rApcrLtjj4v57cLI0AghUmLuzljcbFtfx8awZRhK0PGAnSHrXjAx4JW3ZSmJjRU0MBvlZS_LSJkx1HKEiuNM0Icl21vXVHFxDnoaDagTnwCumBCoFtMTwWixgXeKWJdMLzMJueQQUudua34M6Yt8BBMgRfoLsqH2_4hdpxI

Monaco Editor Playground Code

const value = /* set from `myEditor.getModel()`: */ `function hello() {
	alert('Hello world!');
}`;

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

const messageContribution = myEditor.getContribution('editor.contrib.messageController');
myEditor.onDidAttemptReadOnlyEdit(() => {
	// eslint-disable-next-line @typescript-eslint/no-explicit-any
	(messageContribution as any).showMessage('readOnlyReason', myEditor.getPosition());
});

Reproduction Steps

added onDidAttemptReadOnlyEdit to customize tooltip message for readonly mode
using messageContribution.showMessage method

Actual (Problematic) Behavior

in the playground, got error Property 'showMessage' does not exist on type 'IEditorContribution', in our actual product, we can access showMessage but showMessage got called again with default readonly message.

Expected Behavior

Tooltip should show customized readonly message other than default message

Additional Context

the monaco editor version we are using is 0.37.0