- Moved export test from _demo/embedded/export_test/ to test/export_test.go - Converted shell-based test to Go test for better CI integration - Test verifies that //export directive correctly exports functions with different symbol names - Fixed test to use repository version of llgo instead of system-installed version Generated with [codeagent](https://github.com/qbox/codeagent) Co-authored-by: luoliwoshang <51194195+luoliwoshang@users.noreply.github.com>