Create function variables using the data produced by the pre-scanner. (#3199)

The pre-scanner now is able to track all variable declarations and produces a compressed
stream which store this data for each function and catch block. When a function or
catch block is parsed, this information is decoded and the appropriate variables are
created. Furthermore a stack scope is created which contains the currently available
local variables and their register or literal index.

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

jerry-core/parser/js/js-parser.h

@@ -37,9 +37,9 @@ typedef enum
 
   PARSER_ERR_OUT_OF_MEMORY,                           /**< out of memory */
   PARSER_ERR_LITERAL_LIMIT_REACHED,                   /**< maximum number of literals reached */
+  PARSER_ERR_SCOPE_STACK_LIMIT_REACHED,               /**< maximum depth of scope stack reached */
   PARSER_ERR_ARGUMENT_LIMIT_REACHED,                  /**< maximum number of function arguments reached */
   PARSER_ERR_STACK_LIMIT_REACHED,                     /**< maximum function stack size reached */
-  PARSER_ERR_REGISTER_LIMIT_REACHED,                  /**< maximum register size reached */
 
   PARSER_ERR_INVALID_CHARACTER,                       /**< unexpected character */
   PARSER_ERR_INVALID_HEX_DIGIT,                       /**< invalid hexadecimal digit */