Add cram test

Signed-off-by: Sudha Parimala <sudharg247@gmail.com>

Author: Sudha247

test/blackbox-tests/test-cases/pkg/ocamllsp/dev-tool-ocamllsp-special-compiler-version.t

@@ -0,0 +1,36 @@
+Test the special compiler version is picked up by ocamllsp.
+
+  $ . ../helpers.sh
+  $ . ./helpers.sh
+
+  $ mkrepo
+  $ make_mock_ocamllsp_package
+  $ mkpkg ocaml-variants 5.2.0+ox
+  $ mkpkg ocaml 5.2.0
+
+  $ setup_ocamllsp_workspace
+
+  $ cat > dune-project <<EOF
+  > (lang dune 3.21)
+  > 
+  > (package
+  >  (name foo)
+  >  (allow_empty))
+  > EOF
+
+  $ make_lockdir
+  $ make_lockpkg ocaml-variants <<EOF
+  > (version 5.2.0+ox)
+  > EOF
+  $ make_lockpkg ocaml <<EOF
+  > (version 5.2.0)
+  > EOF
+
+  $ dune tools exec ocamllsp
+  Solution for _build/.dev-tools.locks/ocaml-lsp-server:
+  - ocaml.5.2.0
+  - ocaml-lsp-server.0.0.1
+  - ocaml-variants.5.2.0+ox
+       Running 'ocamllsp'
+  hello from fake ocamllsp
+