See http://gcc.gnu.org/wiki/DW_AT_GNAT_descriptive_type . */
DW_AT (DW_AT_use_GNAT_descriptive_type, 0x2301)
DW_AT (DW_AT_GNAT_descriptive_type, 0x2302)
+/* Rational constant extension.
+ See https://gcc.gnu.org/wiki/DW_AT_GNU_numerator_denominator . */
+DW_TAG (DW_AT_GNU_numerator, 0x2303)
+DW_TAG (DW_AT_GNU_denominator, 0x2304)
+/* Biased integer extension.
+ See https://gcc.gnu.org/wiki/DW_AT_GNU_bias . */
+DW_TAG (DW_AT_GNU_bias, 0x2305)
/* UPC extension. */
DW_AT (DW_AT_upc_threads_scaled, 0x3210)
/* PGI (STMicroelectronics) extensions. */