Scanner rework. (#3038)

The scanner was an on-demand tool of the parser, which was triggered by certain
statements. After the rework, the scanner runs only once, and collects all information.
This information is passed to the parser.

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

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

@@ -52,8 +52,9 @@ parser_malloc (parser_context_t *context_p, /**< context */
 /**
  * Free memory allocated by parser_malloc.
  */
-void parser_free (void *ptr, /**< pointer to free */
-                  size_t size) /**< size of the memory block */
+inline void JERRY_ATTR_ALWAYS_INLINE
+parser_free (void *ptr, /**< pointer to free */
+             size_t size) /**< size of the memory block */
 {
   jmem_heap_free_block (ptr, size);
 } /* parser_free */