src/vs/workbench/browser/parts/titlebar/windowTitle.ts/WindowTitle/getFullWindowTitle
class WindowTitle:	private getFullWindowTitle(): string {
		let title = this.getWindowTitle() || this.productService.nameLong;
		const { prefix, suffix } = this.getTitleDecorations();
		if (prefix) {
			title = `${prefix} ${title}`;
		}
		if (suffix) {
			title = `${title} ${suffix}`;
		}
		// Replace non-space whitespace
		title = title.replace(/[^\S ]/g, ' ');
		return title;
	}