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This prevents the compiler from issuing a bogus error about a constant whose full declaration appears too late, if it is declared in a nested generic package and instantiated in another nested instantiation, when the instantiations are done in a unit withed from the main unit and containing an inlined subprogram, and cross-unit inlining is enabled. It turns out that, under these very peculiar conditions, the compiler ends up instantiating the body of the generic package twice, which leads to various semantic errors, in particular for declarations of constants. 2019-09-19 Eric Botcazou <ebotcazou@adacore.com> gcc/ada/ * sem_ch12.adb (Instantiate_Package_Body): Check that the body has not already been instantiated when the body of the parent was being loaded. gcc/testsuite/ * gnat.dg/inline21.adb, gnat.dg/inline21_g.ads, gnat.dg/inline21_h.adb, gnat.dg/inline21_h.ads, gnat.dg/inline21_q.ads: New testcase. From-SVN: r275953
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