clarified NEWS: document_files are officially required since Isabelle2014, but the absence was tolerated as legacy feature;
(* Title: HOL/Codegenerator_Test/Code_Test_GHC.thy
Author: Andreas Lochbihler, ETH Zurich
Test case for test_code on GHC
*)
theory Code_Test_GHC imports "../Library/Code_Test" begin
test_code "(14 + 7 * -12 :: integer) = 140 div -2" in GHC
value [GHC] "14 + 7 * -12 :: integer"
end