Clean up Dodger so that it can compile examples

Looks like some of the logic/types from Evildoer were
copied over to improve Dodger, but in the process
there were some conflicting changes. Nothing major.

* No longer need `char.c` in the Makefile
* No longer need `char.c` at all (all printing is done in `print.c`)
* We do not need the EOF and VOID types in `values.h`

Author: jmct

langs/dodger/Makefile

@@ -10,7 +10,7 @@ endif
 objs = \
 	main.o \
 	values.o \
-	char.o
+	print.o
 
 default: runtime.o
 

langs/dodger/char.c

@@ -1,6 +1,7 @@
 #include <stdio.h>
 #include <inttypes.h>
 #include "values.h"
+#include "types.h"
 
 void print_char(val_char_t);
 void print_codepoint(val_char_t);
@@ -18,11 +19,6 @@ void print_result(val_t x)
   case T_CHAR:
     print_char(val_unwrap_char(x));    
     break;
-  case T_EOF:
-    printf("#<eof>");
-    break;
-  case T_VOID:
-    break;    
   case T_INVALID:
     printf("internal error");
   }