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/ecma/builtin-objects/ecma-builtin-global.c

@@ -107,7 +107,7 @@ ecma_builtin_global_object_eval (ecma_value_t x) /**< routine's first argument *
 #endif /* JERRY_ESNEXT */
 
   /* steps 2 to 8 */
-  return ecma_op_eval (ecma_get_string_from_value (x), parse_opts);
+  return ecma_op_eval (x, parse_opts);
 } /* ecma_builtin_global_object_eval */
 
 /**