src/vs/workbench/contrib/debug/common/debugModel.ts/Expression/constructor
class Expression:	constructor(public name: string, id = generateUuid()) {
		super(undefined, undefined, 0, id);
		this.available = false;
		// name is not set if the expression is just being added
		// in that case do not set default value to prevent flashing #14499
		if (name) {
			this.value = Expression.DEFAULT_VALUE;
		}
	}