Support parsing of scripts / functions stored in string values (#4728)

Function arguments must be passed as string values.
Snapshots are generated from compiled code rather than source code.

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

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

@@ -192,11 +192,18 @@ typedef enum
  */
 typedef uint32_t parser_line_counter_t;
 
+/**
+ * Source code as character data.
+ */
+typedef struct
+{
+  const uint8_t *source_p; /**< valid UTF-8 source code */
+  size_t source_size; /**< size of the source code */
+} parser_source_char_t;
+
 /* Note: source must be a valid UTF-8 string */
 ecma_compiled_code_t *
-parser_parse_script (const uint8_t *arg_list_p, size_t arg_list_size,
-                     const uint8_t *source_p, size_t source_size,
-                     uint32_t parse_opts, const jerry_parse_options_t *options_p);
+parser_parse_script (void *source_p, uint32_t parse_opts, const jerry_parse_options_t *options_p);
 
 #if JERRY_ERROR_MESSAGES
 const char *parser_error_to_string (parser_error_t);