Parameter name does not shadow in-scope type name

[mlbrooks]

    typedef int T;

    void sut( int T ) {
    	printf("%d\n", T);          // syntax error suggesting T is a type
    }
    void fyi() {
        int T = 1;
        printf("%d\n", T);          // ok
    }
    int main() {
        sut( 1 );
        fyi();
        return 0;
    }

CFA Actual: compile error, as commented above

GCC Actual, All Expected: print "1" twice