[lto][patch] Fix more C++ compatibility and casting warnings

["Bill Maddox" <maddox at google dot com>]

This patch corrects -Wcast_qual and -Wc++-compat warnings in the
gcc/lto subdirectory.
Warnings in this directory are not being treated as errors.

gcc/lto:

	* lto.c (lto_read_decls): Fix C++ compatibility warnings.
	Make code const-correct.
	(lto_file_read): Fix C++ compatibility warnings.
	(lto_read_section_data):  Fix C++ compatibility warnings.
	(lto_get_section_data):	Use CONST_CAST to avoid warning when
	const pointer passed to free.
	* lto-elf.c (lto_elf_build_section_table): Fix C++ compatibility warnings.
	(lto_elf_append_data):  Fix C++ compatibility warnings.  Use CONST_CAST
	to avoid warning assigning const pointer to d_buf field of Elf_Data.
	(lto_get_current_out_file):  Fix C++ compatibility warnings.

--Bill

Attachment: lto-warning-fix-07-10.txt
Description: Text document