rules shell/test: Add 'keep-dirs' field

The existing rules allow a shell test script to explicitly 'keep'
created files in the resulting output directory, to be accessible
to any dependent target, thus allowing a chaining of data across
test scripts. This field however excludes directories, whose
content would need to be added one file at a time to the 'keep'
field.

Add instead also a 'keep-dirs' field to ["shell/test", "script"]
rule which allows the explicit staging of given directory paths the
test is expected to generate.

0 files changed, 0 insertions, 0 deletions