[MacPorts] #73268: mas @ 3.1.0 ARM64: Build failure on macOS 15.7.2 with Xcode 26.1

[MacPorts]

#73268: mas @ 3.1.0 ARM64: Build failure on macOS 15.7.2 with Xcode 26.1
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  Reporter:  dancamper  |      Owner:  (none)
      Type:  defect     |     Status:  new
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:
Resolution:             |   Keywords:
      Port:  mas        |
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Comment (by ShadSterling):

 Trying again today with Xcode 26.3, CLT 26.3.0.0.1.1771626560 still fails
 with multiple instances of `error: cannot find type 'Span' in scope`

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Ticket URL: <https://trac.macports.org/ticket/73268#comment:8>
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