Rework the core of class parsing/runtime semantic (#3598)

Changes:
 - Use the pre-scanner to provide information for the parser about the existence of the class constructor
 - The allocation of the super declarative environment is no longer needed
 - The VM frame context holds the information about the this binding status
 - Reduce the number of class related VM/CBC instructions
 - Improve ecma_op_function_{construct, call} to properly set new.target

JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik frobert@inf.u-szeged.hu

jerry-core/ecma/operations/ecma-eval.c

@@ -98,7 +98,7 @@ ecma_op_eval_chars_buffer (const lit_utf8_byte_t *code_p, /**< code characters b
 #endif /* ENABLED (JERRY_LINE_INFO) || ENABLED (JERRY_ERROR_MESSAGES) */
 
 #if ENABLED (JERRY_ES2015)
-  ECMA_CLEAR_SUPER_EVAL_PARSER_OPTS ();
+  ECMA_CLEAR_LOCAL_PARSE_OPTS ();
 
   /* If a direct eval is used inside the function the info should be propagated. */
   if (JERRY_CONTEXT (current_new_target) != JERRY_CONTEXT_INVALID_NEW_TARGET