Multiple compilation issue - similar to SI-5545

[VladUreche]

https://issues.scala-lang.org/browse/SI-5545

But it seems calling .info on the symbol is not enough this time :(

[VladUreche]

To reproduce, compile gh-bug-3.scala twice: https://github.com/miniboxing/miniboxing-plugin/blob/wip/tests/correctness/src/miniboxing/tests/compile/gh-bug-3.scala

[VladUreche]

Oops, it was bug 11.

[VladUreche]

Seems to be working just fine for all the bugs in trunk. Closing.