cmd/compile: unexport Type.Width and Type.Align [generated]

cmd/compile: unexport Type.Width and Type.Align [generated]

[git-generate]
cd src/cmd/compile/internal

: Workaround rf issue with types2 tests.
rm types2/*_test.go

: Rewrite uses. First a type-safe rewrite,
: then a second pass to fix unnecessary conversions.
rf '
ex ./abi ./escape ./gc ./liveness ./noder ./reflectdata ./ssa ./ssagen ./staticinit ./typebits ./typecheck ./walk {
  import "cmd/compile/internal/types"
  var t *types.Type
  t.Width -> t.Size()
  t.Align -> uint8(t.Alignment())
}

ex ./abi ./escape ./gc ./liveness ./noder ./reflectdata ./ssa ./ssagen ./staticinit ./typebits ./typecheck ./walk {
  import "cmd/compile/internal/types"
  var t *types.Type
  int64(uint8(t.Alignment())) -> t.Alignment()
}
'

: Rename fields to lower case.
(
cd types
rf '
mv Type.Width Type.width
mv Type.Align Type.align
'
)

: Revert types2 changes.
git checkout HEAD^ types2

Change-Id: I42091faece104c4ef619d9d4d50514fd48c8f029
Reviewed-on: https://go-review.googlesource.com/c/go/+/345480
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>