Ocaml 5.3 (#7294)

* OCaml 5.3 + some dependency upgrades

* "effect" is a reserved word now

* no 4.13

* ocamlformat 0.27.0

* Use OCaml 5.3.0

* Run reanalyze on OCaml 5.2.1

Author: cknitt

.devcontainer/postCreate.sh

@@ -2,7 +2,7 @@
 
 # Install dev dependencies from OPAM
 opam init -y --bare --disable-sandboxing
-opam switch create 5.2.1 --packages ocaml-option-static
+opam switch create 5.3.0 --packages ocaml-option-static
 opam install . --deps-only -y
 
 # For IDE support, install the OCaml language server

.github/workflows/ci.yml

@@ -87,32 +87,34 @@ jobs:
       matrix:
         include:
           - os: ubuntu-24.04 # x64
-            ocaml_compiler: ocaml-variants.5.2.1+options,ocaml-option-static
+            ocaml_compiler: ocaml-variants.5.3.0+options,ocaml-option-static
             upload_binaries: true
             upload_libs: true
           - os: ubuntu-24.04-arm # ARM
-            ocaml_compiler: ocaml-variants.5.2.1+options,ocaml-option-static
+            ocaml_compiler: ocaml-variants.5.3.0+options,ocaml-option-static
             upload_binaries: true
             # Build the playground compiler and run the benchmarks on the fastest runner
             build_playground: true
             benchmarks: true
           - os: macos-13 # x64
-            ocaml_compiler: 5.2.1
+            ocaml_compiler: 5.3.0
             upload_binaries: true
           - os: macos-14 # ARM
-            ocaml_compiler: 5.2.1
+            ocaml_compiler: 5.3.0
             upload_binaries: true
           - os: windows-latest
-            ocaml_compiler: 5.2.1
+            ocaml_compiler: 5.3.0
             upload_binaries: true
 
           # Verify that the compiler still builds with older OCaml versions
+          - os: ubuntu-24.04
+            ocaml_compiler: ocaml-variants.5.2.1+options,ocaml-option-static
+            # Reanalyze does not work on OCaml 5.3.0 anymore, therefore run it on 5.2.1
+            run_reanalyze: true
           - os: ubuntu-24.04
             ocaml_compiler: ocaml-variants.5.0.0+options,ocaml-option-static
           - os: ubuntu-24.04
             ocaml_compiler: ocaml-variants.4.14.2+options,ocaml-option-static
-          - os: ubuntu-24.04
-            ocaml_compiler: ocaml-variants.4.13.0+options,ocaml-option-static
 
     runs-on: ${{matrix.os}}
 
@@ -299,6 +301,12 @@ jobs:
         if: ${{ runner.os == 'Windows' }}
         run: opam exec -- make test-syntax
 
+      - name: "Syntax: Run reanalyze"
+        if: matrix.run_reanalyze
+        run: |
+          opam install reanalyze
+          opam exec -- make reanalyze
+
       - name: Build runtime/stdlib
         run: ./scripts/buildRuntime.sh
         shell: bash