Change iterate_over_symbols to return bool

This changes iterate_over_symbols to return a bool.  This allows it to
be reused in another context in a subsequent patch.

gdb/ChangeLog
2019-09-10  Tom Tromey  <tromey@adacore.com>

	* ada-lang.c (ada_iterate_over_symbols): Return bool.
	* language.h (struct language_defn) <la_iterate_over_symbols>:
	Return bool.
	* symtab.c (iterate_over_symbols): Return bool.
	* symtab.h (iterate_over_symbols): Return bool.

1 files changed, 10 insertions, 1 deletions

diff --git a/gdb/symtab.h b/gdb/symtab.h
index f38e544cdb..49feea62e2 100644
--- a/gdb/symtab.h
+++ b/gdb/symtab.h
@@ -2092,7 +2092,16 @@ std::vector<CORE_ADDR> find_pcs_for_symtab_line
 
 typedef bool (symbol_found_callback_ftype) (struct block_symbol *bsym);
 
-void iterate_over_symbols (const struct block *block,
+/* Iterate over the symbols named NAME, matching DOMAIN, in BLOCK.
+
+   For each symbol that matches, CALLBACK is called.  The symbol is
+   passed to the callback.
+
+   If CALLBACK returns false, the iteration ends and this function
+   returns false.  Otherwise, the search continues, and the function
+   eventually returns true.  */
+
+bool iterate_over_symbols (const struct block *block,
 			   const lookup_name_info &name,
 			   const domain_enum domain,
 			   gdb::function_view<symbol_found_callback_ftype> callback);