Release 3.18.1 about copilot

[ivanperez-keera]

Change Manager: Confirmed version is ready to be released.

[ivanperez-keera]

Technical Lead: Confirmed that the issue should be addressed.

[ivanperez-keera]

Technical Lead: Issue scheduled for Copilot 3.18.1.

Fix assigned to: @ivanperez-keera.

[ivanperez-keera]

Implementor: Solution implemented, review requested.

[ivanperez-keera]

Change Manager: Verified that:

• Solution is implemented:

  • The code proposed compiles and passes all tests. Details:
    Build log: https://app.travis-ci.com/github/Copilot-Language/copilot/builds/268181912

  • The solution proposed addresses the necessary modification to cabal packages. The following docker image installs copilot enforcing the new version via compiler constraints. It prints the message "Success" at the end if all completes correctly, and shows an error message otherwise.

    FROM ubuntu:focal
    
    RUN apt-get update
    
    RUN apt-get install --yes libz-dev
    RUN apt-get install --yes git
    
    RUN apt-get install --yes wget
    RUN mkdir -p $HOME/.ghcup/bin
    RUN wget https://downloads.haskell.org/~ghcup/0.1.17.7/x86_64-linux-ghcup-0.1.17.7 -O $HOME/.ghcup/bin/ghcup
    
    RUN chmod a+x $HOME/.ghcup/bin/ghcup
    ENV PATH=$PATH:/root/.ghcup/bin/
    ENV PATH=$PATH:/root/.cabal/bin/
    RUN apt-get install --yes curl
    RUN apt-get install --yes gcc g++ make libgmp3-dev
    RUN ghcup install ghc 9.6.3
    RUN ghcup install cabal 3.4
    RUN ghcup set ghc 9.6.3
    RUN cabal update
    
    SHELL ["/bin/bash", "-c"]
    CMD git clone $REPO \
        && cd $NAME \
        && git checkout $COMMIT \
        && cabal install --lib copilot**/ \
             --constraint="copilot==3.18.1" \
             --constraint="copilot-c99==3.18.1" \
             --constraint="copilot-core==3.18.1" \
             --constraint="copilot-prettyprinter==3.18.1" \
             --constraint="copilot-interpreter==3.18.1" \
             --constraint="copilot-language==3.18.1" \
             --constraint="copilot-libraries==3.18.1" \
             --constraint="copilot-theorem==3.18.1" \
        && echo Success

    Command (substitute variables based on new path after merge):

    $ docker run -e "REPO=https://github.com/ivanperez-keera/copilot" -e "NAME=copilot" -e "COMMIT=70da64a31d97abe3d7ece3e62e3335af7e3ed786" -it copilot-verify-493
    

• Implementation is documented. Details:
  No changes to the documentation needed (change to fields in cabal).
• Change history is clear.
• Commit messages are clear.
• Changelogs are updated.
• Examples are updated. Details:
  No examples affected.
• Required version bumps are evaluated. Details:
  No bump needed (but implemented by the change).

[ivanperez-keera]

Change Manager: Implementation ready to be merged.