ECMAScript proposal updates @ 2019-10

The changes of proposal’s status @ 72th meeting of Ecma TC39

New Proposals

Proposal	Stage
`Map.prototype.upsert`	2
Making mapping over Objects more concise	1
Record & Tuple	1
Declarations in Conditionals	1
UUID	1
Readonly Collections	1
Support for Distributed Promise Pipelining	1
Wavy Dot: Syntactic Support for Promise Pipelining	1
OOM Fails Fast	1

Proposal	From	To
`globalThis`	3	4
`for-in` mechanics	2	3
`String.prototype.replaceAll`	2	3
`Promise.any`	2	3