gdb:

PR breakpoints/10738
	* dwarf2read.c (use_deprecated_index_sections): New global.
	(struct partial_die_info): New member may_be_inlined.
	(read_partial_die): Set may_be_inlined where appropriate.
	(add_partial_subprogram): Add partial symbols for partial
	DIEs that may be inlined.
	(new_symbol_full): Add inlined subroutines to the current
	scope.
	(write_psymtabs_to_index): Bump version number.
	(dwarf2_read_index): Read only version 6 indices unless
	use_deprecated_index_sections is set.
	* linespec.c (symbol_and_data_callback): New structure.
	(iterate_inline_only): New function.
	(iterate_over_all_matching_symtabs): New argument
	"include_inline".  If nonzero, also call the callback for
	symbols representing inlined subroutines.
	(lookup_prefix_sym): Pass extra argument to the above.
	(find_function_symbols): Likewise.
	(add_matching_symbols_to_info): Likewise.
	* NEWS: Mention that GDB can now set breakpoints on inlined
	functions.

gdb/doc:
	PR breakpoints/10738
	* gdb.texinfo (Inline Functions): Remove the now-unnecessary @item
	stating that GDB cannot set breakpoints on inlined functions.
	(Mode Options): Document --use-deprecated-index-sections.
	(Index Section Format): Document new index section version format.

gdb/testsuite:
	PR breakpoints/10738
	* gdb.opt/inline-break.exp: New file.
	* gdb.opt/inline-break.c: Likewise.
	* gdb.dwarf2/inline-break.exp: Likewise.
	* gdb.dwarf2/inline-break.S: Likewise.
	* gdb.base/annota1.exp: Cope with old .gdb_index warnings.
	* gdb.base/async-shell.exp: Likewise.
	* lib/mi-support.exp (library_loaded_re): Likewise.

gdb/main.c

@@ -450,6 +450,8 @@ captured_main (void *data)
       {"args", no_argument, &set_args, 1},
       {"l", required_argument, 0, 'l'},
       {"return-child-result", no_argument, &return_child_result, 1},
+      {"use-deprecated-index-sections", no_argument,
+       &use_deprecated_index_sections, 1},
       {0, no_argument, 0, 0}
     };
 
@@ -1020,6 +1022,10 @@ Options:\n\n\
   --tui              Use a terminal user interface.\n\
 "), stream);
 #endif
+  fputs_unfiltered (_("\
+  --use-deprecated-index-sections\n\
+                     Do not reject deprecated .gdb_index sections.\n\
+"), stream);
   fputs_unfiltered (_("\
   --version          Print version information and then exit.\n\
   -w                 Use a window interface.\n\