[5.9🍒] emit error when a noncopyable enum has a raw type #66847
Merged
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• Description: A raw enum is only useful if you synthesize conformance to RawRepresentable. Since I disabled that synthesis for noncopyable enums, it's simply confusing for people to be able to declare a raw noncopyable enum.
• Risk: Low. Introduces a minor source break to prevent confusion.
• Original PR: #66818
• Reviewed By: @slavapestov
• Testing: regression tests included
• Resolves: rdar://110539937