gRPC refactoring of actions and observations

#562

…h other classes

Co-authored-by: Chris Cummins <[email protected]>

Update statistics.py

Rename id attribute for rewards to "name"

[datasets] Small benchmark URI fix and tweak

[llvm] Enable the strip-optnone-attribute binary to take a list of paths

Co-authored-by: Chris Cummins <[email protected]>

Co-authored-by: Chris Cummins <[email protected]>

Co-authored-by: Chris Cummins <[email protected]>

Co-authored-by: Chris Cummins <[email protected]>

The polly project is not used by CompilerGym.

Fixes the (harmless) typo "string" in place of "STRING", causing the
following warning:

    -- Install configuration: "Release"
    CMake Warning (dev) at build_tools/cmake/FindCsmith.cmake:52 (set):
      implicitly converting 'string' to 'STRING' type.
    Call Stack (most recent call first):
      external/external.cmake:397 (find_package)
      CMakeLists.txt:64 (include)
    This warning is for project developers.  Use -Wno-dev to suppress it.

Create JSON or YAML Files with Loop Features/Configurations

This makes the (dodgy AF) C++ parsing logic slightly more robust by
fixing a couple of bugs where concatenated string were not correctly
interpreted, and where comments were not parsed properly.

[cmake] Handful of small tweaks

Remove the size limit on incoming and outgoing messages, and
increase the mazimum allowed metadata message size.

This is all to improve the reliability of the service when working
with particuluarly large programs / observations, that can exceed
the quite tight default resource constraints in gRPC.

[service] Loosen gRPC constraints on message sizes.

Issue #459.

This extends the logic for extracting #include search paths to also
extract the location of the -lSystem library from the host target.

This is to enable compiler binary support on macOS.

Fix a bug in which connection live was reported the wrong way
around (dead services were logged as alive and alive connections as
dead.

Also makes the representations more verbose to better explain what
type and state they are in.

boost::asio::io_service is only for backwards compatibility.

This corrects my use of the boost::process API whereby llvm-size child
processes could become detached from the parent environment service
and be left as zombies.

I found this issue will attempting to reproduce #572. I'm not sure if
this bug is relevant.

#572

Runtime observation space is now supported.

Hardening patchset

This is to enable other targets to depend on it without creating a
circular dependency on the Benchmark target.