fehler61: static function whose address is stored in a global variable...

fehler61: static function whose address is stored in a global variable incorrectly is marked as fastcall.

[r15479]

ir/be/test/fehler61.c

+#include <stdio.h>
+
+static void f(int i)
+{
+	printf("%d (should be 42)\n", i);
+}
+
+void (*x)(int) = f;
+
+int main(void)
+{
+	x(42);
+	return 0;
+}