Fixed support for storage class specifiers after type specifiers.

test/val/decl-mixed-specifiers.c

@@ -0,0 +1,19 @@
+/* bug 1888 - cc65 fails with storage class specifiers after type specifiers */
+
+#include <stdio.h>
+
+int const typedef volatile x_type, * const volatile y_type;
+
+int static failures = 0;
+
+int extern main(void);
+
+int main(void)
+{
+    volatile static x_type const x = 42, * const volatile y[] = { 1 ? &x : (y_type)0 };
+    if (**y != 42) {
+        ++failures;
+        printf("y = %d, Expected: 42\n", **y);
+    }
+    return failures;
+}