Project restucture with IR and CG

src/grammar.y

@@ -17,22 +17,7 @@
 // Please ask Scarlett if you are unsure of how to format something. Thanks! 😀
 
 %{
-    #include "../src/symbol_table.h"
-    extern FILE *asc_flag;
-    extern bool tc_flag;
-
-    typedef enum {
-        ERROR_RUNTIME = 1,
-        ERROR_SYNTAX = 2,
-        ERROR_TYPE = 3,
-        ERROR_UNDEFINED = 4
-    } ErrorType;
-
-    int token_tracker;
-    TableNode * tn;
-
-    void yyerror(const char *err);
-    void throw_error(ErrorType error_type, const char *format, ...);
+    #include "../src/grammar.h"
 %}
 
 %union {
@@ -630,7 +615,7 @@ expression:
                 $$ = node;
             } else {
                 $$=undefined;
-                error_type(getTypeEntry((TableNode*)$2), integ, "");
+                throw_error(ERROR_TYPE, "%s != %s", getName(getTypeEntry((TableNode*)$2)), getName(integ));
             }
         }