<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=http://email.email.llvm.org/c/eJztVVFznCAQ_jX4wtRRjF7vwYfkLjeT5ybPDsLeSYviAOaSf99FveTS2DZt2j7VWRHZ5WP3g2VrIx_L20Y5iuIboMJIIMmWJJekSCYRhF0FmUZZpjqhBwmUZBthOgG9dyS7ntVj67wdhKfzH1md5ibrWbMxbWu6oFhtSXZSn_fPca7ei6M6T1uuOsI-ErZeQuNeiYo7B9ajkfOSZJcojreAwxjp5TQwL8g26NT5AMaPwOcenC3_xOT0e043WGssVZ721shBgAuoS5PM4MFWXfBHWtP3IOMQUSweHnBKmmPD8J0AQ-dFTHTPlQY5QdH5-dNRn3BJfk1fPWR1_VfkzeSkgZTOeAjfGgQfHB5htvq9qFcU7rkeuAdJvUF6tYN_w-7Cg4SfknPXmBbwI6HH9mjsF9dzEUa0vm8_4Cn7DALd2dWD0hK_czJj75TmbHefYlNVT8nNdrPPcROYXAdO19-hs6pm20q1vX4vmbMLdMbEK2dLX61Q3fYBt7rrEQ19KFAWrO4mq9tg9QNW_zGZxalZJPPGfUJj9P6ZvmfeRhoDcfAWCl8SMjH5BP-CwnPgn56-J7rS-S47QAc2-BEv3mM3He25xcwYNMeLrxtvQYc0KgxqacL_bfilbfiGPRVy5zHUGu4pjr45lCJZCgWtj40STShfwlg78r6h9eADb6jDVUwH9GgGLSk89GhA99a04za34Bw_QBzJMpPrbM0jPvjG2NKbtjbQtGCjweqy8b4fCyHboRyUb4Y6Fqadd_z1xivnBgh7mmfZOouaMs34HiBhwOUKCiHTlMO-TvlqzXheFEWkeQ3alSTHs8E6ONIRAvsk30bv90CVLGEsSdkFyxg2cSpykYAsCpGm-UWWk4sEsETpOODExh4iW46Q9XBwqNTKefesxCqiDh3A6DB66JXXUG4VP3TGYTI5Guqeo2MhpEKjPQ3lkO4xIyViYUp4zLbupAVHjxjVeLGOltEYQTm6_xWpW_hJ>53393</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            Diagnostics drops outer class name for distinct inner classes with same name
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            new issue
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          tomboehmer
      </td>
    </tr>
</table>

<pre>
    This is the code
```c++
#include <concepts>

struct A
{
        struct Common{};
};

struct B
{
        struct Common{};
};

int main()
{
        static_assert(std::same_as<A::Common, B::Common>);
}

```
This is the error it produces:
```
outer_name_dropped.main.cxx:15:2: error: static_assert failed
        static_assert(std::same_as<A::Common, B::Common>);
        ^                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
outer_name_dropped.main.cxx:15:21: note: because 'std::same_as<A::Common, B::Common>' evaluated to false
        static_assert(std::same_as<A::Common, B::Common>);
                           ^
/home/dep/workspace/llvm-project/build/include/c++/v1/__concepts/same_as.h:29:19: note: because '__same_as_impl<A::Common, B::Common>' evaluated to false
concept same_as = __same_as_impl<_Tp, _Up> && __same_as_impl<_Up, _Tp>;
                  ^
/home/dep/workspace/llvm-project/build/include/c++/v1/__concepts/same_as.h:26:26: note: because '_IsSame<Common, Common>::value' evaluated to false
concept __same_as_impl = _IsSame<_Tp, _Up>::value;
                         ^
1 error generated.
```
In particular in the section
```
/home/dep/workspace/llvm-project/build/include/c++/v1/__concepts/same_as.h:26:26: note: because '_IsSame<Common, Common>::value' evaluated to false
concept __same_as_impl = _IsSame<_Tp, _Up>::value;
                         ^
```
it says that `_IsSame<Common, Common>::value` evaluated to false, which is correct, but not what one would expect from the message.
</pre>
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