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template as a specialization. For example, this occurs with:
template<typename T>
struct X {
template<typename U> struct Inner { /* ... */ };
};
template<> template<typename T>
struct X<int>::Inner {
T member;
};
We need to treat templates that are member specializations as special
in two contexts:
- When looking for a definition of a member template, we look
through the instantiation chain until we hit the primary template
*or a member specialization*. This allows us to distinguish
between the primary "Inner" definition and the X<int>::Inner
definition, above.
- When computing all of the levels of template arguments needed to
instantiate a member template, don't add template arguments
from contexts outside of the instantiation of a member
specialization, since the user has already manually substituted
those arguments.
Fix up the existing test for p18, which was actually wrong (but we
didn't diagnose it because of our poor handling of member
specializations of templates), and add a new test for member
specializations of templates.
llvm-svn: 83974
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