Merge branch 'feature/virgile/warn-key-unique-opt' into 'master'

src/plugins/e-acsl/tests/bts/bts1395.i

src/plugins/e-acsl/tests/bts/oracle/bts1395.res.oracle

src/plugins/e-acsl/tests/bts/test_config

src/plugins/e-acsl/tests/builtin/test_config

src/plugins/e-acsl/tests/format/test_config

src/plugins/e-acsl/tests/full-mmodel-only/test_config

src/plugins/e-acsl/tests/full-mmodel/test_config

src/plugins/e-acsl/tests/gmp/longlong.i

src/plugins/e-acsl/tests/gmp/oracle/longlong.0.res.oracle

src/plugins/e-acsl/tests/gmp/oracle/longlong.1.res.oracle

src/plugins/e-acsl/tests/gmp/test_config

src/plugins/e-acsl/tests/runtime/test_config

src/plugins/e-acsl/tests/temporal/t_getenv.c

src/plugins/e-acsl/tests/temporal/test_config