Summary:
An expectation in `utils/lit/tests/Inputs/shtest-shell/redirects.txt`
expects that first a string printed to stdout is seen, and then a
string printed to stderr. Add `flush()` calls to ensure that stdout is
printed before stderr, as expected.
Reviewers: rnk, mgorny, jroelofs
Reviewed By: rnk
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D35947
llvm-svn: 309292
Rewrite the write-to-stderr.sh and write-to-stdout-and-stderr.sh shell
scripts as python scripts and call python on them.
Fixes PR33940
llvm-svn: 309200