vendors/execa.js/canCopyProperty
var canCopyProperty = function(toDescriptor, fromDescriptor) {
  return toDescriptor === void 0 || toDescriptor.configurable || toDescriptor.writable === fromDescriptor.writable && toDescriptor.enumerable === fromDescriptor.enumerable && toDescriptor.configurable === fromDescriptor.configurable && (toDescriptor.writable || toDescriptor.value === fromDescriptor.value);
};