ID with same name as funtion macro highlighted incorrectly

[cD1rtX3]

Type: Bug

typedef int A;
#define A()
#define b(a) b(a)
void b(A a);

Here, A in void b(A a); should be green like a typename, but it is purple like a macro.

#define a()
#define b(a) b(a)
void b(int a);

Here, a should be grey like a parameter in void b(int a); and white like a constant in #define b(a) b(a), but it is purple like a macro in both places.

This only occurs when the typename is inside a function macro's arguments or in a macro's expansion definition.

Extension version: 1.31.0
VS Code version: Code 1.109.5 (072586267e68ece9a47aa43f8c108e0dcbf44622, 2026-02-19T19:43:32.382Z)
OS version: Linux x64 6.8.0-100-generic
Modes:

[sean-mcmanus]

@cD1rtX3 I filed a bug against our shared VS parser at https://developercommunity.visualstudio.com/t/C-IntelliSense-is-incorrect-in-the-param/11051919 . The bug also exists when you hover over A.