When we try (but fail) to build a precompiled preamble, wait for a
short "cooling off" period (defaulting to 5 reparses) before trying to
build a precompiled preamble again. Previously, if we failed to build
the precompiled preamble at any time, we just gave up the whole
charade any never tried again.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110187 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed