Re-target for ES.Next (#3901)

A list of changes:
- 'es2015-subset' profile is deprecated, and an 'es.next' profile is added.
- The default profile is changed to 'es.next'
- Renamed the JERRY_ES2015 guard to JERRY_ESNEXT
- Renamed JERRY_ES2015_BUILTIN_* guards to JERRY_BUILTIN_*
- Moved es2015 specific tests to a new 'es.next' subdirectory
- Updated docs, targets, and test runners to reflect these changes

Resolves #3737.

JerryScript-DCO-1.0-Signed-off-by: Dániel Bátyai dbatyai@inf.u-szeged.hu

jerry-core/ecma/base/ecma-literal-storage.c

@@ -25,7 +25,7 @@
  * @{
  */
 
-#if ENABLED (JERRY_ES2015)
+#if ENABLED (JERRY_ESNEXT)
 /**
  * Free symbol list
  */
@@ -53,7 +53,7 @@ ecma_free_symbol_list (jmem_cpointer_t symbol_list_cp) /**< symbol list */
     symbol_list_cp = next_item_cp;
   }
 } /* ecma_free_symbol_list */
-#endif /* ENABLED (JERRY_ES2015) */
+#endif /* ENABLED (JERRY_ESNEXT) */
 
 /**
  * Free string list
@@ -115,9 +115,9 @@ ecma_free_number_list (jmem_cpointer_t number_list_cp) /**< string list */
 void
 ecma_finalize_lit_storage (void)
 {
-#if ENABLED (JERRY_ES2015)
+#if ENABLED (JERRY_ESNEXT)
   ecma_free_symbol_list (JERRY_CONTEXT (symbol_list_first_cp));
-#endif /* ENABLED (JERRY_ES2015) */
+#endif /* ENABLED (JERRY_ESNEXT) */
   ecma_free_string_list (JERRY_CONTEXT (string_list_first_cp));
   ecma_free_number_list (JERRY_CONTEXT (number_list_first_cp));
 } /* ecma_finalize_lit_storage */
@@ -542,7 +542,7 @@ ecma_snapshot_get_literal (const uint8_t *literal_base_p, /**< literal start */
  * Compute the start of the serializable ecma-values of the bytecode
  * Related values:
  *  - function argument names, if CBC_CODE_FLAGS_MAPPED_ARGUMENTS_NEEDED is present
- *  - function name, if CBC_CODE_FLAGS_CLASS_CONSTRUCTOR is not present and ES2015 profile is enabled
+ *  - function name, if CBC_CODE_FLAGS_CLASS_CONSTRUCTOR is not present and ES.next profile is enabled
  *  - resource name, if JERRY_RESOURCE_NAME is enabled
  *
  * @return pointer to the beginning of the serializable ecma-values
@@ -568,13 +568,13 @@ ecma_snapshot_resolve_serializable_values (ecma_compiled_code_t *compiled_code_p
     base_p -= argument_end;
   }
 
-#if ENABLED (JERRY_ES2015)
+#if ENABLED (JERRY_ESNEXT)
   /* function name */
   if (!(compiled_code_p->status_flags & CBC_CODE_FLAGS_CLASS_CONSTRUCTOR))
   {
     base_p--;
   }
-#endif /* ENABLED (JERRY_ES2015) */
+#endif /* ENABLED (JERRY_ESNEXT) */
 
 #if ENABLED (JERRY_RESOURCE_NAME)
   /* resource name */