[PATCH] [libcxx] Fix __RAII_IncreaseAnnotator for increases >= 1

[Kostya Serebryany]

Seems fine, but is it possible to add a test to 
test/std/containers/sequences/vector/asan_throw.pass.cc
that will fail w/o this fix?


http://reviews.llvm.org/D8172

EMAIL PREFERENCES
  http://reviews.llvm.org/settings/panel/emailpreferences/