d: Fix internal compiler error: in visit, at d/imports.cc:72 (PR108050)
The visitor for lowering IMPORTED_DECLs did not have an override for
dealing with importing OverloadSet symbols. This has now been
implemented in the code generator.
PR d/108050
gcc/d/ChangeLog:
* decl.cc (DeclVisitor::visit (Import *)): Handle build_import_decl
returning a TREE_LIST.
* imports.cc (ImportVisitor::visit (OverloadSet *)): New override.
gcc/testsuite/ChangeLog:
* gdc.dg/imports/pr108050/mod1.d: New.
* gdc.dg/imports/pr108050/mod2.d: New.
* gdc.dg/imports/pr108050/package.d: New.
* gdc.dg/pr108050.d: New test.
(cherry picked from commit
d9d8c9674ad3ad3aa38419d24b1aaaffe31f5d3f)