Hi
In maybe_promote_captured_temps, the cleanup_point_stmt has been
stripped when handle temporaries captured by reference. However, maybe
there are non-reference temporaries in current stmt which cause ice in
gimpilify pass.

This patch fix this. The testcase comes from cppcoro and is reduced by
creduce.

Bootstrap and test on X86_64, is it OK?

Regards
JunMa

gcc/cp
2020-02-11  Jun Ma <JunMa@linux.alibaba.com>

         * coroutines.cc (maybe_promote_captured_temps): Do not strip
         cleanup_point_stmt.

gcc/testsuite
2020-02-11  Jun Ma <JunMa@linux.alibaba.com>

         * g++.dg/coroutines/torture/lambda-09-capture-object.C: New test.