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Merlin 4.2

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  • merlin binary
    • external configuration reading:
      • use relative paths to communicate with Dune when possible. This solves issues related to symlinks on Unix and improve Windows support (#1271, fixes #1288)
      • make the workdir configuration value when using the dune ocaml-merlin configuration provider the same as when using dot-merlin-reader so that ppxes behaves in the same way as before (#1284, fixes ocaml/dune#4479, discussion in #1292)
    • destruct:
      • improve prefixing of generated constructors in Destruct by filtering opened modules (#1277)
      • make the destruct command more resilient to ill-typed expressions and when called without nodes (#1304, fixes #1300)
    • reintroduce some record recovery and improve completion (#1276)
    • introduce a new AST node for holes (_), allow correct typing of these holes and add a new holes command that returns the locations of all holes in the current file along with their types (#1242, #1289)
    • Mppx: don't restore cookies after invocation. Ppx are invoked only once so there is no need to manage cookies. This small change should increase performance and should not change any other behavior (#1309)
    • Windows: system command variant: do not open a window console when launching a ppx (#1270, fixes #714)
    • fix same file documentation bug (#1265 by @ulugbekna, fixes #1261)
  • editor modes
    • vim: Add MerlinNextHole and MerlinPreviousHole commands to navigate between holes. Jump to the first hole after destruct (#1287, #1303)
    • emacs: Add merlin-next-hole and merlin-previous-hole commands to navigate holes. Jump to the first hole after calling destruct. (#1291)
    • emacs: modernization of the elisp code and conformance with coding guidelines (#1247, #1310 by Steve Purcell )
    • vim & emacs : new client-side "merlin use package" commands, restoring previous behavior (#1272, fixes #1191)
  • test suite
    • cover constructor disambiguation and record fields (#1276)
    • cover the new holes command and AST node (#1242, #1289)
    • cover the document fix (#1265, #1315)