src/vs/editor/common/config/editorOptions.ts/WrappingIndentOption/validate
class WrappingIndentOption:	public validate(input: any): WrappingIndent {
		switch (input) {
			case 'none': return WrappingIndent.None;
			case 'same': return WrappingIndent.Same;
			case 'indent': return WrappingIndent.Indent;
			case 'deepIndent': return WrappingIndent.DeepIndent;
		}
		return WrappingIndent.Same;
	}