src/vs/workbench/contrib/codeEditor/electron-sandbox/selectionClipboard.ts/PasteSelectionClipboardAction/run
class PasteSelectionClipboardAction:	public async run(accessor: ServicesAccessor, editor: ICodeEditor, args: any): Promise<void> {
		const clipboardService = accessor.get(IClipboardService);

		// read selection clipboard
		const text = await clipboardService.readText('selection');

		editor.trigger('keyboard', Handler.Paste, {
			text: text,
			pasteOnNewLine: false,
			multicursorText: null
		});
	}