src/vs/workbench/contrib/terminal/browser/xterm/xtermTerminal.ts/XtermTerminal/_setCursorStyle
class XtermTerminal:	private _setCursorStyle(style: 'block' | 'underline' | 'bar' | 'line'): void {
		if (this.raw.options.cursorStyle !== style) {
			// 'line' is used instead of bar in VS Code to be consistent with editor.cursorStyle
			this.raw.options.cursorStyle = (style === 'line') ? 'bar' : style;
		}
	}