Release 3.5.1 (2020-10-01)

Baseline: 889bc0b

Cherry picks:

• a7a0d48:
  Make no-op starlark transition not affect the output directory.
• b37c51c:
  Add include_prefix and strip_include_prefix to cc_common.compile
• f6ad35f:
  Delete --experimental_transparent_compression
• 39bc97e:
  Remove --experimental_action_args
• b970667:
  Stop needlessly parsing WORKSPACE files from external
  repositories.
• e574d55:
  Allow hyphen char in workspace name
• 9993785:
  Allow dot ('.') in workspace names.
• b3ac8f6:
  Patch upb to fix build error with gcc 10
• 26cbf77:
  Patch upb to fix build error with gcc 10 (third_party)
• f1f9411:
  Fix incorrect rule class digest when creating rules through
  macros.
• 6b591a7:
  Prepare for bazel to run with shrunken r8.jar
• 7a11752:
  Don't run DexFileMergerTest as it is not supported for all
  r8.jar's

New features:

• cc_common.compile support for include_prefix/strip_include_prefix

Important changes:

• Removed the flag --experimental_transparent_compression.
• Removed the flag --experimental_action_args.
• Stop needlessly parsing WORKSPACE files from external
  repositories.
• Dot ('.') is now allowed in workspace names. See
  #11837.

This release contains contributions from many people at Google, as well as David Ostrovsky.

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