Revert back comment test. Have to figure out how to test without vm

tests/include/tast2.h

@@ -23,7 +23,7 @@ extern "C" {
 #define BOOL true
 #define MATHEXPR (1 + 2/3*20 - 100)
 #define ANDEXPR (100 & 11000)
-//define CASTEXPR (int) 34
+#define CASTEXPR (int) 34
 
 #define NULLCHAR '\0'
 #define OCTCHAR '\012'

tests/tast2.nim

@@ -118,7 +118,7 @@ assert BINEXPR == 5
 assert BOOL == true
 assert MATHEXPR == -99
 assert ANDEXPR == 96
-# assert CASTEXPR == 34.chr
+assert CASTEXPR == 34.chr
 
 assert TRICKYSTR == "N\x1C\nfoo\x00\'\"\c\v\a\b\e\f\t\\\\?bar"
 assert NULLCHAR == '\0'