[MacPorts] #55068: gcc5 @5.4.0_2 update to 5.5.0

[MacPorts]

#55068: gcc5 @5.4.0_2 update to 5.5.0
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  Reporter:  nortcele  |      Owner:
      Type:  update    |     Status:  new
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:
Resolution:            |   Keywords:  haspatch
      Port:  gcc5      |
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Comment (by kencu):

 They released `5.5.0` pretty quickly.

 I think we just first need to decide if we're going to blend in the gcj
 fixes that you and Jack suggested from [ticket:49227]. From my
 perspective, if it works, it would be a fine idea to add that in. I know
 Jeremy, Ryan and others have opinions on this as well.

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Ticket URL: <https://trac.macports.org/ticket/55068#comment:2>
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