Add support for enums about c2go HOT 3 CLOSED

#include<stdio.h>
enum week{Mon, Tue, Wed};
int main()
{
    enum week day;
    day = Wed;
    printf("%d",day); // result is : 2
    return 0;
}

#include<stdio.h>
enum year{Jan, Feb, Mar, Apr, May, Jun, Jul, 
          Aug, Sep, Oct, Nov, Dec};
int main()
{
   int i;
   for (i=Jan; i<=Dec; i++)      
      printf("%d ", i);
   return 0;
}

#include <stdio.h>
enum State {Working = 1, Failed = 0, Freezed = 0};
int main()
{
   printf("%d, %d, %d", Working, Failed, Freezed); // result : 1, 0, 0
   return 0;
}

#include <stdio.h>
enum day {sunday, monday, tuesday, wednesday, thursday, friday, saturday};
int main()
{
    enum day d = thursday;
    printf("The day number stored in d is %d", d); //Result : The day number stored in d is 4
    return 0;
}

#include <stdio.h>
enum day {sunday = 1, monday, tuesday = 5,
          wednesday, thursday = 10, friday, saturday}; 
int main(){
       printf("%d %d %d %d %d %d %d", sunday, monday, tuesday,
            wednesday, thursday, friday, saturday); // Result : 1 2 5 6 10 11 12
    return 0;}

#include <stdio.h>
enum State {WORKING = 0, FAILED, FREEZED};
enum State currState = 2;
 enum State FindState() {    return currState;}
 int main() {
   (FindState() == WORKING)? printf("WORKING"): printf("NOT WORKING");
   return 0;
}