Ahmed Bougacha 69d141712a
[AArch64] Bump default CPUs for iOS 26/watchOS 26 to A12/S6. (#152235)
iOS 26/watchOS 26 deprecate some devices, allowing the default CPU to be
raised based on the deployment target.

watchOS 26 also introduces arm64 (vs. arm64_32/arm64e).

The defaults are now:
- arm64-apple-ios26         apple-a12
- arm64-apple-watchos26     apple-s6
- arm64_32-apple-watchos26  apple-s6
- arm64e-apple-watchos26    apple-s6

Left unchanged are:
- arm64-apple-tvos26        apple-a7
- arm64e-apple-tvos26       apple-a12
- arm64e-apple-ios26        apple-a12
- arm64_32-apple-watchos11  apple-s4

While there, rewrite an outdated comment in a related Mac test.
2025-08-11 11:39:16 -07:00
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