[PATCH] Add a cc1 option called dump-coverage-mapping

[Bob Wilson]

This is OK to commit. The option description is currently:

"Dump the coverage mapping records that will be emitted in a translation unit”

How about changing that to the following?

"Dump the coverage mapping records, for testing”

There are some other “dump” options with similar descriptions, and I think it’s useful to suggest the purpose of the option.

http://reviews.llvm.org/D4799