Justice Adams

[green-dragon-migration] fixup venv activation in lldb job

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## In This PR * Forgot to activate the venv in a few places

[green-dragon-migration] Fixup some relay jobs

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## In This PR * Update the relay jobs to conform to the new structure This code has been tested on https://green.lab.llvm.org/ ( I don't know why, but git thinks...

[green-dragon-migration] add llvm coverage job

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## In This PR * Update llvm coverage job the job has been updated to: * Run on the correct labels * download artifacts to S3 * Set environment variables...

Set install dir correctly for libSwiftRemoteMirror

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### In This PR * Include `libswiftRemoteMirror` in shared cache by ensuring the split segment info load command is included in the library. The linker only adds `LC_SEGMENT_SPLIT_INFO` if the...