Flutter downloads only one version of flutter_patched_sdk, which was obtained from host_debug build on Linux. Generated entry points JSON files are different in profile and release builds (as release build omits observatory), so these files should be downloaded independently of flutter_patched_sdk.
This PR moves generated entry points JSON files from flutter_patched_sdk to a separate directory (out/*/dart_entry_points) and adds an option to specify entry points to frontend_server (as Flutter tools will need to pass custom locations of entry points files outside of flutter_patched_sdk).
8bd1d0d50e