Restore deleted lines. (#1574)

In a previous patch the original null count behaviour of the
property hashmap is just only partially restored. Now it is
restored fully Also another assertion was forgot to be fixed
in another patch, and we do so now.

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com

Author: zherczeg

jerry-core/ecma/base/ecma-property-hashmap.c

@@ -310,8 +310,13 @@ ecma_property_hashmap_insert (ecma_object_t *object_p, /**< object */
   bits_p += (entry_index >> 3);
   mask = (uint32_t) (1 << (entry_index & 0x7));
 
-  hashmap_p->null_count--;
-  JERRY_ASSERT (hashmap_p->null_count > 0);
+  if (!(*bits_p & mask))
+  {
+    /* Deleted entries also has ECMA_NULL_POINTER
+     * value, but they are not NULL values. */
+    hashmap_p->null_count--;
+    JERRY_ASSERT (hashmap_p->null_count > 0);
+  }
 
   hashmap_p->unused_count--;
   JERRY_ASSERT (hashmap_p->unused_count > 0);

jerry-core/parser/js/js-parser.c

@@ -323,7 +323,7 @@ parser_compute_indicies (parser_context_t *context_p, /**< context */
     {
       if (!(literal_p->status_flags & LEXER_FLAG_NO_REG_STORE))
       {
-        JERRY_ASSERT (register_count < PARSER_MAXIMUM_NUMBER_OF_REGISTERS);
+        JERRY_ASSERT (register_count <= PARSER_MAXIMUM_NUMBER_OF_REGISTERS);
         /* This var literal can be stored in a register. */
         literal_p->prop.index = register_index;
         register_index++;