+2019-01-10 Tom Tromey <tom@tromey.com>
+
+ * objfiles.h (objfile::reset_psymtabs): Update.
+ * objfiles.c (objfile::objfile): Update.
+ * psymtab.h (psymtab_storage::obstack): Update.
+ (psymtab_storage::m_obstack): Use gdb::optional.
+ (class psymtab_storage): Update comment. Remove objfile
+ parameter.
+ * psymtab.c (psymtab_storage::psymtab_storage): Update.
+
2019-01-10 Tom Tromey <tom@tromey.com>
* psymtab.h (psymtab_storage::allocate_psymtab): New method.