https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119316

            Bug ID: 119316
           Summary: new expression incorrectly required to have constant
                    expression size
           Product: gcc
           Version: 15.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: eczbek.void at gmail dot com
  Target Milestone: ---

https://godbolt.org/z/YTK4PYrqE


```cpp
template<typename T>
void foo(unsigned n) requires(requires { new T[n]; }) {}

int main() { foo<int>(5); }
```


```
<source>: In instantiation of 'void foo(unsigned int) requires requires{new T(
foo::n);} [with T = int]':
<source>:2:48: error: size of array is not an integral constant-expression
    2 | void foo(unsigned n) requires(requires { new T[n]; }) {}
      |                                                ^
```

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