Error on use of NTTP in lambda in requires clause with same name as variable template

[Eczbek]

https://godbolt.org/z/3r8erG8dP

template<int> int a;

template<int a> void f() requires requires { [] { a; }; } {}

int main() {}

<source>:3:51: error: use of variable template 'a' requires template arguments
    3 | template<int a> void f() requires requires { [] { a; }; } {}
      |                                                   ^
<source>:1:19: note: template is declared here
    1 | template<int> int a;
      | ~~~~~~~~~~~~~     ^
1 error generated.
Compiler returned: 1

[llvmbot]

@llvm/issue-subscribers-clang-frontend

Author: None (Eczbek)

https://godbolt.org/z/3r8erG8dP

template<int> int a;

template<int a> void f() requires requires { [] { a; }; } {}

int main() {}

<source>:3:51: error: use of variable template 'a' requires template arguments
    3 | template<int a> void f() requires requires { [] { a; }; } {}
      |                                                   ^
<source>:1:19: note: template is declared here
    1 | template<int> int a;
      | ~~~~~~~~~~~~~     ^
1 error generated.
Compiler returned: 1