[DDMD] Use an alloc function for Token freelist instead of operator new.

src/lexer.c

@@ -70,17 +70,17 @@ static void cmtable_init()
 
 const char *Token::tochars[TOKMAX];
 
-void *Token::operator new(size_t size)
-{   Token *t;
-
+Token *Token::alloc()
+{
     if (Lexer::freelist)
     {
-        t = Lexer::freelist;
+        Token *t = Lexer::freelist;
         Lexer::freelist = t->next;
+        t->next = NULL;
         return t;
     }
 
-    return ::operator new(size);
+    return new Token();
 }
 
 #ifdef DEBUG
@@ -361,7 +361,7 @@ Token *Lexer::peek(Token *ct)
         t = ct->next;
     else
     {
-        t = new Token();
+        t = Token::alloc();
         scan(t);
         ct->next = t;
     }

src/lexer.h

@@ -218,7 +218,7 @@ struct Token
     };
 
     static const char *tochars[TOKMAX];
-    static void *operator new(size_t sz);
+    static Token *alloc();
 
     Token() : next(NULL) {}
     int isKeyword();

src/parse.c

@@ -5253,7 +5253,7 @@ Statement *Parser::parseStatement(int flags, const utf8_t** endPtr)
 
                     default:
                     Ldefault:
-                        *ptoklist = new Token();
+                        *ptoklist = Token::alloc();
                         memcpy(*ptoklist, &token, sizeof(Token));
                         ptoklist = &(*ptoklist)->next;
                         *ptoklist = NULL;