Fixes of x86_64 compiler

[e2e4b6b7]

• Added name for dune-project (otherwise installation fails)
• Fixed missed escaping for \r
• Prohibited indirect assignment (if ... then a else b fi := 0) as:
  • It does not work correctly in terms of STI / STA and leads to invalid stack
  • For X86_64 it requires propagation of the assignment as variable may be stored in register
• Added error if assembly toolchain failed (before this compiler returned with 0 code)
• Some minor fixes of correctness

[Kakadu]

@e2e4b6b7
Could you fix CI?

[e2e4b6b7]

Now CI fails in the same way as on the original branch. (There was a branch synchronization issue)

Additionally, I fixed #30 by -Wa,--noexecstack argument. But not removed any dirty hacks and not updated tests output as gen.ml is not working for me (it results with files with empty output)

[Kakadu]

Now CI fails in the same way as on the original branch.

It looks like it started giving an exit code 1. It's scary

[e2e4b6b7]

It looks like it started giving an exit code 1. It's scary

Yes, but master branch doing the same right now

[Kakadu]

Could you check that removing redirection and grep helps?

[e2e4b6b7]

Yes, looks like it is indeed issue of grep

[Kakadu]

It's better now, but it transformed into a Mac issue

[e2e4b6b7]

Also the same issue as on the master. Looks like it tries to build 32-bit runtime on macos