erik.pilkington added inline comments.
================
Comment at: clang/include/clang/Basic/DiagnosticSemaKinds.td:4111
+ "candidate template ignored: %select{template is not a function template"
+ "|is not a member of the enclosing namespace}0">;
----------------
rjmccall wrote:
> Your first explanation has a subject, but the second doesn't. And I think it
> would be nice to suggest adding explicit scope qualification in the second
> case.
>
> I assume non-templates have previously been filtered out?
Oh, no, good point. A non-template can still get into here:
```
namespace ns1 { template <class T> struct foo {}; }
namespace ns2 { int foo() {} } // bad diag: template is not a function template
using ns1::foo;
using ns2::foo;
template <class T> class A {
friend void foo<T>() {}
};
```
I added this to the testcases.
https://reviews.llvm.org/D49085
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