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Here, since the call to g is not type-dependent, we call mark_used on it to determine its return type. This also wants to instantiate the noexcept-expression. But since nothing in maybe_instantiate_noexcept was calling push_to_top_level, we substituted b.i with processing_template_decl set, so we left it unresolved for later access checking. As a result, the type of C::g<int> remained instantiation-dependent, leading to an ICE in type_dependent_expression_p on the assert that the type of a function template with no dependent template arguments must be non-dependent. * pt.c (maybe_instantiate_noexcept): push_to_top_level. From-SVN: r274143
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