suppress code after continue as well

fix an oversight in code suppression

tccgen.c

@@ -6275,6 +6275,7 @@ static void block(int *bsym, int *csym, int is_expr)
         *csym = gjmp(*csym);
         next();
         skip(';');
+        nocode_wanted |= 0x20000000;
     } else if (tok == TOK_FOR) {
         int e;
 	int saved_nocode_wanted;
@@ -7670,7 +7671,6 @@ found:
                 }
                 next();
             }
-            ad.a.aligned = 0;
         }
     }
     return 0;

tests/tcctest.c

@@ -1374,6 +1374,12 @@ void optimize_out(void)
       printf("ool6:%d\n", defined_function());
       goto breakhere;
   }
+  j = 1;
+  while (j) {
+      j--;
+      continue;
+      printf("ool7:%d\n", undefined_function());
+  }
 
   /* Test that constants in logical && are optimized: */
   i = 0 && undefined_function();