Backport https://reviews.llvm.org/D69983.

I want to clean up <ctype.h> now that API levels before 21 are no longer
supported, but -- although upstream libc++ is fine -- our old libc++
unconditionally defines inlines for these functions, which collide with
my attempt to do the same in bionic.

Rather than keep waiting for the new libc++, backport this trivial fix.

Test: treehugger
Change-Id: I579a16ee3c4877d5033a0e4166f49d76af3a093b
1 file changed