Remove ES_NEXT macro (#4915)

- remove all '#JERRY_ESNEXT' macro
- remove 5.1 build profile, update test runner accordingly (Note: all builtins are turn on by default)
- move tests from tests/jerry/esnext into tests/jerry, concatenate files with same names
- add skiplist to some snapshot tests that were supported only in 5.1
- fix doxygen issues that were hidden before (bc. of es.next macro)

Co-authored-by: Martin Negyokru negyokru@inf.u-szeged.hu
JerryScript-DCO-1.0-Signed-off-by: Adam Szilagyi aszilagy@inf.u-szeged.hu

jerry-core/ecma/builtin-objects/ecma-builtins.h

@@ -38,8 +38,6 @@ typedef enum
   ECMA_BUILTIN_ID__COUNT /**< number of built-in objects */
 } ecma_builtin_id_t;
 
-#if JERRY_ESNEXT
-
 /**
  * Special id for handlers (handlers are not regular built-ins, but
  * they use the same ecma_built_in_props_t structure as other built-ins)
@@ -51,8 +49,6 @@ typedef enum
  */
 #define ECMA_BUILTIN_GLOBAL_SYMBOL_COUNT (LIT_GLOBAL_SYMBOL__LAST - LIT_GLOBAL_SYMBOL__FIRST + 1)
 
-#endif /* JERRY_ESNEXT */
-
 /**
  * Construct a routine value
  */
@@ -100,9 +96,7 @@ typedef struct
   ecma_value_t this_binding; /**< 'this' binding of this global object */
 #endif /* JERRY_BUILTIN_REALMS */
   jmem_cpointer_t global_env_cp; /**< global lexical environment */
-#if JERRY_ESNEXT
   jmem_cpointer_t global_scope_cp; /**< global lexical scope */
-#endif /* JERRY_ESNEXT */
   jmem_cpointer_t builtin_objects[ECMA_BUILTIN_OBJECTS_COUNT]; /**< pointer to instances of built-in objects */
 } ecma_global_object_t;
 
@@ -120,9 +114,7 @@ ecma_value_t ecma_builtin_dispatch_construct (ecma_object_t *obj_p,
 ecma_property_t *ecma_builtin_routine_try_to_instantiate_property (ecma_object_t *object_p,
                                                                    ecma_string_t *property_name_p);
 ecma_property_t *ecma_builtin_try_to_instantiate_property (ecma_object_t *object_p, ecma_string_t *property_name_p);
-#if JERRY_ESNEXT
 void ecma_builtin_routine_delete_built_in_property (ecma_object_t *object_p, ecma_string_t *property_name_p);
-#endif /* JERRY_ESNEXT */
 void ecma_builtin_delete_built_in_property (ecma_object_t *object_p, ecma_string_t *property_name_p);
 void ecma_builtin_routine_list_lazy_property_names (ecma_object_t *object_p,
                                                     ecma_collection_t *prop_names_p,