Nicholas Bishop e5957037fb Support assigning to a variable through an imported macro (#6827) ...

Support assigning to a variable through an imported macro

Example:

```carbon
import Cpp inline '''
int v = 1;
#define m v
''';

fn F() {
  Cpp.m = 2;
}
```

2026-03-05 18:24:32 +00:00

..

cpp

Support assigning to a variable through an imported macro (#6827)

2026-03-05 18:24:32 +00:00