grasp-squery fails when used with acorn-object-spread

[vidoss]

grasp-squery fails when used with acorn-object-spread.

TypeError: Cannot read property 'start' of undefined
    at node_modules/grasp-squery/lib/common.js:17:40
    at visitPre (node_modules/grasp-squery/lib/common.js:36:5)
    at visitPre (node_modules/grasp-squery/lib/common.js:49:9)
    at visitPre (node_modules/grasp-squery/lib/common.js:59:11)
    at visitPre (node_modules/grasp-squery/lib/common.js:59:11)
    at new Cache (node_modules/grasp-squery/lib/common.js:10:5)
    at Object.queryParsed (node_modules/grasp-squery/lib/index.js:9:64)
    at search (node_modules/grasp/lib/index.js:216:29)
    at run (node_modules/grasp/lib/index.js:397:7)

Code to reproduce attached.
squery_fail.txt

[junyo]

+1

[adros]

+1