K 10
svn:author
V 6
emaste
K 8
svn:date
V 27
2018-11-09T18:35:09.478983Z
K 7
svn:log
V 388
Move llvm-profdata build into MK_LLVM_COV block

llvm-profdata is used with llvm-cov for code coverage (although llvm-cov
can also operate independently in a gcov-compatible mode).
Although llvm-profdata can be used independently of llvm-cov it makes
sense to group these under one option.

Also handle these in OptionalObsoleteFiles.inc while here.

Sponsored by:	The FreeBSD Foundation

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