[modules] Follow the C++ standard's rule for linkage of enumerators: they have
the linkage of the enumeration. For enumerators of unnamed enumerations, extend
the -Wmodules-ambiguous-internal-linkage extension to allow selecting an
arbitrary enumerator (but only if they all have the same value, otherwise it's
ambiguous).
llvm-svn: 253010
diff --git a/clang/test/Modules/submodules-merge-defs.cpp b/clang/test/Modules/submodules-merge-defs.cpp
index 361f05b..12e3cad 100644
--- a/clang/test/Modules/submodules-merge-defs.cpp
+++ b/clang/test/Modules/submodules-merge-defs.cpp
@@ -116,4 +116,12 @@
// expected-note@defs.h:71 {{declared here in module 'redef'}}
// expected-note@defs.h:71 {{declared here in module 'stuff.use'}}
#endif
+int use_anon_enum = G::g;
+#ifdef EARLY_INDIRECT_INCLUDE
+// expected-warning@-2 3{{ambiguous use of internal linkage declaration 'g' defined in multiple modules}}
+// FIXME: These notes are produced, but -verify can't match them?
+// FIXME-note@defs.h:51 3{{declared here in module 'redef'}}
+// FIXME-note@defs.h:51 3{{declared here in module 'stuff.use'}}
+#endif
+int use_named_enum = G::i;
#endif