Louis Dionne d51f57c23c [libc++] Pickle substitutions to pass them to dsl.sh.py
This is less brittle than hand-picking the substitutions that we
pass to the test, since a config could theorically use non-base
substitutions as well (such as defining %{flags} in terms of another
substitution like %{include}).

Also, print the decoded substitutions, which makes it much easier
to debug the test when it fails.

Differential Revision: https://reviews.llvm.org/D111179
2021-10-05 19:51:23 -04:00
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