truffle console can't handle statement with nested await

[d10r]

Because of the switch to web3.js 1.0, more functions do now return a Promise.
The console of truffle 5 supports the await keyword, making it much more convenient to interact with Promise-returning functions. However the support is limited. This for example doesn't work yet:

truffle(sigma1)> web3.utils.fromWei((await web3.eth.getBalance(addr)))
evalmachine.<anonymous>:0
web3.utils.fromWei((await web3.eth.getBalance(addr)))
                          ^^^^

SyntaxError: Unexpected identifier

When executed in a non-interactive environment (e.g. as a truffle js test), this statement would work.

[CruzMolina]

Citing this as a potentially relevant solution: nodejs/node#13209 (comment)

[gnidan]

Closing this as won't fix. Getting this to work right is tricky, better just wait until Node 10 when support here is much improved. Thanks for raising the concern!

[haltman-at]

Reopening this now that Node 10 support is indeed much improved. :)