Working on Qt 4.7.4 (tests/auto/tst_qaccessibility.cpp), the IDE says that 

"EXPECT(entry == 0 && iface->object() == parent->object());"
expands to
"do { if (!errorAt && !( entry == 0 && iface->object() == parent->object() )) { errorAt = ; qWarning("level: %d, middle: %d, role: %d (%s)", treelevel, middle, iface->role(0), "entry==0&&iface->object()==parent->object()" ); } } while (0);"

and because of the "errorAt = ;" marks the line as error.

This is wrong as EXPECT is defined as
#define EXPECT(cond) \
    do { \
        if (!errorAt && !(cond)) { \
            errorAt = __LINE__; \
            qWarning("level: %d, middle: %d, role: %d (%s)", treelevel, middle, iface->role(0), #cond); \
        } \
    } while (0)

The only problem is the IDE does not handle the __LINE__macro well