ir: Consider integral types of same kind and size as equivalent

ir: Consider integral types of same kind and size as equivalent

On some platforms, "long int" and "long long int" can have the same
size.  In that case, we want those two types to be equivalent from ABI
standpoint.  Otherwise, through the use of typedefs and pointers, two
structs "C" defined in different translation units where one uses
"long int" in a translation unit and "long long int" in another should
be considered ABI compatible if long int and long long int have the
same size on that platform.

Otherwise, that causes spurious type changes that lead to self
comparison change down the road.  For instance, the following command
fails:

    $ tools/fedabipkgdiff --debug --self-compare -a --from fc36 btrfs-progs

This patch thus changes the comparison engine of the IR so that the
"short, long and long long" modifiers don't change the result of
comparing integral types that share the same base type when they have
the same size.

	* include/abg-fwd.h (is_integral_type): Declare new function.
	* include/abg-ir.h (type_decl::get_qualified_name): Add a
	declaration of an implementation of the virtual interface
	get_qualified_name.
	* src/abg-ir-priv.h (integral_type::set_modifiers): Define a new
	setter.
	(integral_type::to_string): Add an "internal" flag.
	* src/abg-ir.cc (operator~, operator&=): Declare
	new operators.
	(get_internal_integral_type_name): Define new static function.
	(decl_base::priv::{temporary_internal_qualified_name_,
	internal_qualified_name_}): Define two new data members.
	(get_type_name): For internal name of integral types, use the new
	get_internal_integral_type_name function.
	(is_integral_type): Define new function.
	(integral_type::set_modifiers): Define new member function.
	(operator|, operator&): Fix some indentation.
	(operator~, operator&=): Define new operators.
	(parse_integral_type): Fix the logic of this function.  Namely, it
	wasn't handling parsing "long long" correctly.
	(integral_type::to_string): Add an "internal" flag.
	(equals): In the overload for type_decl, do not take the short,
	long and long long into account when comparing integral types of
	the same size.
	(type_decl::get_qualified_name): Define new method.
	(type_decl::get_pretty_representation): For internal name of
	integral types, use the new get_internal_integral_type_name
	function.
	({decl,type}_topo_comp::operator()): Use the non-internal pretty
	representation of decls/types for sorting purpose.
	* src/abg-reader.cc (build_type_decl): We don't expect the
	integral type name from abixml to the same as the name of the
	parsed integral type, as the abixml file can be old and have an
	old format.
	* tests/data/test-annotate/libtest23.so.abi: Adjust.
	* tests/data/test-annotate/libtest24-drop-fns-2.so.abi: Adjust.
	* tests/data/test-annotate/libtest24-drop-fns.so.abi: Adjust.
	* tests/data/test-annotate/test0.abi: Adjust.
	* tests/data/test-annotate/test15-pr18892.so.abi: Adjust.
	* tests/data/test-annotate/test17-pr19027.so.abi: Adjust.
	* tests/data/test-annotate/test18-pr19037-libvtkRenderingLIC-6.1.so.abi:
	Adjust.
	* tests/data/test-annotate/test19-pr19023-libtcmalloc_and_profiler.so.abi:
	Adjust.
	* tests/data/test-annotate/test20-pr19025-libvtkParallelCore-6.1.so.abi:
	Adjust.
	* tests/data/test-annotate/test21-pr19092.so.abi: Adjust.
	* tests/data/test-diff-dwarf/PR25058-liblttng-ctl-report-1.txt:
	Adjust.
	* tests/data/test-diff-filter/test41-report-0.txt: Adjust.
	* tests/data/test-diff-pkg/tbb-4.1-9.20130314.fc22.x86_64--tbb-4.3-3.20141204.fc23.x86_64-report-0.txt:
	Adjust.
	* tests/data/test-diff-pkg/tbb-4.1-9.20130314.fc22.x86_64--tbb-4.3-3.20141204.fc23.x86_64-report-1.txt:
	Adjust.
	* tests/data/test-diff-dwarf/PR25058-liblttng-ctl-report-1.txt:
	Adjust.
	* tests/data/test-read-dwarf/PR22015-libboost_iostreams.so.abi:
	Adjust.
	* tests/data/test-read-dwarf/PR22122-libftdc.so.abi: Adjust.
	* tests/data/test-read-dwarf/PR25007-sdhci.ko.abi: Adjust.
	* tests/data/test-read-dwarf/PR25042-libgdbm-clang-dwarf5.so.6.0.0.abi:
	Adjust.
	* tests/data/test-read-dwarf/libtest23.so.abi: Adjust.
	* tests/data/test-read-dwarf/libtest24-drop-fns-2.so.abi: Adjust.
	* tests/data/test-read-dwarf/libtest24-drop-fns.so.abi: Adjust.
	* tests/data/test-read-dwarf/test-PR26568-1.o.abi: Adjust.
	* tests/data/test-read-dwarf/test-PR26568-2.o.abi: Adjust.
	* tests/data/test-read-dwarf/test-libaaudio.so.abi: Adjust.
	* tests/data/test-read-dwarf/test-libandroid.so.abi: Adjust.
	* tests/data/test-read-dwarf/test0.abi: Adjust.
	* tests/data/test-read-dwarf/test0.hash.abi: Adjust.
	* tests/data/test-read-dwarf/test1.hash.abi: Adjust.
	* tests/data/test-read-dwarf/test10-pr18818-gcc.so.abi: Adjust.
	* tests/data/test-read-dwarf/test11-pr18828.so.abi: Adjust.
	* tests/data/test-read-dwarf/test12-pr18844.so.abi: Adjust.
	* tests/data/test-read-dwarf/test15-pr18892.so.abi: Adjust.
	* tests/data/test-read-dwarf/test16-pr18904.so.abi: Adjust.
	* tests/data/test-read-dwarf/test17-pr19027.so.abi: Adjust.
	* tests/data/test-read-dwarf/test18-pr19037-libvtkRenderingLIC-6.1.so.abi:
	Adjust.
	* tests/data/test-read-dwarf/test19-pr19023-libtcmalloc_and_profiler.so.abi:
	Adjust.
	* tests/data/test-read-dwarf/test20-pr19025-libvtkParallelCore-6.1.so.abi:
	Adjust.
	* tests/data/test-read-dwarf/test21-pr19092.so.abi: Adjust.
	* tests/data/test-read-dwarf/test22-pr19097-libstdc++.so.6.0.17.so.abi:
	Adjust.
	* tests/data/test-read-dwarf/test9-pr18818-clang.so.abi: Adjust.
	* tests/data/test-read-write/test22.xml: Adjust.
	* tests/data/test-read-write/test23.xml: Adjust.
	* tests/data/test-read-write/test28-without-std-fns-ref.xml: Adjust.
	* tests/data/test-read-write/test28-without-std-vars-ref.xml: Adjust.

Signed-off-by: Dodji Seketeli <dodji@redhat.com>