Commits on Dec 27, 2022

1. Fix ui constant tests for big-endian platforms …

   A number of tests under ui/const-ptr and ui/consts are currently
   failing on big-endian platforms as the binary encoding of some
   constants is hard-coded in the stderr test files.  Fix this by
   providing a normalize-stderr-test rule that strips out the
   raw bytes hex dump, so the comparison can be done in an
   endianness-independent manner.  Note that in most cases, this
   means the tests are now also independent of word size, so the
   32bit and 64bit cases can be re-unified.
   
   To keep tests that verify the details of those raw bytes dumps,
   a new test case raw-bytes.rs performs the tests where the hex
   dumps were stripped out a second time, but only on little-
   endian platforms.
   
   In addition, src/test/ui/const-ptr/forbidden_slices.rs exposes
   an endian-specific difference in this diagnostic output:
      constructing invalid value at .<deref>[0]: encountered 0x11,
      but expected a boolean
   depending on which byte of D0 is not a boolean value (0 or 1).
   Fixed this by choosing a value of D0 that differs from 0 or 1
   in all bytes.
   
   Fixes part of rust-lang#105383.

   

   uweigand committed Dec 27, 2022
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