tests : add test-jinja -py option for cross-checking (#18906)
* tests : add test-jinja -py option or cross-checking
* Update tests/test-jinja.cpp
Co-authored-by: Sigbjørn Skjæret <sigbjorn.skjaeret@scala.com>
* fix + add source
* SandboxedEnvironment
* fix array.map case
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Co-authored-by: Sigbjørn Skjæret <sigbjorn.skjaeret@scala.com>
