src/vs/workbench/api/common/extHostLanguageFeatures.ts/ExtHostLanguageFeatures/registerInlineCompletionsProvider
class ExtHostLanguageFeatures:	registerInlineCompletionsProvider(extension: IExtensionDescription, selector: vscode.DocumentSelector, provider: vscode.InlineCompletionItemProvider): vscode.Disposable {
		const adapter = new InlineCompletionAdapter(extension, this._documents, provider, this._commands.converter);
		const handle = this._addNewAdapter(adapter, extension);
		this._proxy.$registerInlineCompletionsSupport(handle, this._transformDocumentSelector(selector), adapter.supportsHandleDidShowCompletionItem);
		return this._createDisposable(handle);
	}