struct test_t
{
	int x, y;
};

void foo0(test_t a);
void foo1(test_t* a);				// syntax highlight fails
void foo2(test_t& a);				// syntax highlight fails
void foo1a(test_t* a, test_t* b);	// syntax highlight fails
void foo2a(test_t& a, test_t& b);	// syntax highlight fails
void foo1b(int x, test_t* a);
void foo2b(int x, test_t& a);
void foo1c(test_t* a, int x);
void foo2c(test_t& a, int x);
void foo1d(const test_t* a);
void foo2d(const test_t& a);


void test(test_t& x)	// on definitions, it works
{
	foo2(x);			// syntax highlight fails
	foo1b(1, x);
}