Flaky test-repl-timeout-throw

[BridgeAR]

https://ci.nodejs.org/job/node-test-commit-linux-containered/1871/nodes=ubuntu1604_sharedlibs_debug_x64/console

11:07:54 not ok 2050 sequential/test-repl-timeout-throw
11:07:54   ---
11:07:54   duration_ms: 5.146
11:07:54   severity: fail
11:07:54   stack: |-
11:07:54     > ''
11:07:54     > THROW 0
11:07:54     ReferenceError: XXX is not defined
11:07:54         at Timeout.thrower [as _onTimeout] (repl:1:116)
11:07:54         at ontimeout (timers.js:458:11)
11:07:54         at tryOnTimeout (timers.js:307:5)
11:07:54         at Timer.listOnTimeout (timers.js:270:5)
11:07:54     > undefined
11:07:54     > ... ... ... ..... ..... ....... ....... ..... ... ''
11:07:54     > THROW 1
11:07:54     ReferenceError: XXX is not defined
11:07:54         at EventEmitter.thrower (repl:1:116)
11:07:54         at EventEmitter.emit (events.js:131:13)
11:07:54         at EventEmitter.emit (domain.js:439:23)
11:07:54     > 2
11:07:54     var throws = 0;process.on("exit",function(){console.log(throws)});function thrower(){console.log("THROW",throws++);XXX};setTimeout(thrower);""
11:07:54     fs.readFile("/home/iojs/build/workspace/node-test-commit-linux-containered/nodes/ubuntu1604_sharedlibs_debug_x64/test/sequential/test-repl-timeout-throw.js", thrower);
11:07:54     setTimeout(function() {
11:07:54       const events = require("events");
11:07:54       var e = new events.EventEmitter;
11:07:54       process.nextTick(function() {
11:07:54         e.on("x", thrower);
11:07:55         setTimeout(function() {
11:07:55           e.emit("x");
11:07:55         });
11:07:55       });
11:07:55     });"";
11:07:55     assert.js:72
11:07:55       throw new AssertionError(obj);
11:07:55       ^
11:07:55     
11:07:55     AssertionError [ERR_ASSERTION]: '> 2' strictEqual '> 3'
11:07:55         at ChildProcess.<anonymous> (/home/iojs/build/workspace/node-test-commit-linux-containered/nodes/ubuntu1604_sharedlibs_debug_x64/test/sequential/test-repl-timeout-throw.js:58:10)
11:07:55         at ChildProcess.emit (events.js:131:13)
11:07:55         at maybeClose (internal/child_process.js:946:16)
11:07:55         at Process.ChildProcess._handle.onexit (internal/child_process.js:220:5)