[Ada] Support of the Ada.Text_IO hierarchy for 128-bit types

[Ada] Support of the Ada.Text_IO hierarchy for 128-bit types

gcc/ada/

	* Makefile.rtl (GNATRTL_NONTASKING_OBJS): Add a-llltio, a-lllwti,
	a-lllzti and remove a-timoau, a-wtmoau and a-ztmoau.
	(GNATRTL_128BIT_PAIRS): Add a-tiinio.adb, a-timoio.adb, a-wtinio.adb,
	a-wtmoio.adb, a-ztinio.adb and a-ztmoio.adb.
	* impunit.adb (Non_Imp_File_Names_95): Add a-llltio, a-lllwti and
	a-lllzti.
	* krunch.ads: Document trick for Ada.Long_Long_Long_Integer_*_IO.
	* krunch.adb (Krunch): Add trick for Ada.Long_Long_Long_Integer_*_IO.
	* libgnat/a-llltio.ads: Instantiate Ada.Text_IO.Integer_IO.
	* libgnat/a-lllwti.ads: Instantiate Ada.Wide_Text_IO.Integer_IO.
	* libgnat/a-lllzti.ads: Instantiate Ada.Wide_Wide_Text_IO.Integer_IO.
	* libgnat/a-tigeau.ads (Load_Integer): New procedure.
	* libgnat/a-tigeau.adb (Load_Integer): Likewise.
	* libgnat/a-tiinau.ads, libgnat/a-tiinau.adb: Change to generic
	package.
	* libgnat/a-tiinio.adb: Instantiate it.
	* libgnat/a-tiinio__128.adb: Likewise.
	* libgnat/a-timoau.ads, libgnat/a-timoau.adb: Change to generic
	package.
	* libgnat/a-timoio.adb: Instantiate it.
	* libgnat/a-timoio__128.adb: Likewise.
	* libgnat/a-wtgeau.ads (Load_Integer): New procedure.
	* libgnat/a-wtgeau.adb (Load_Integer): Likewise.
	* libgnat/a-wtinau.ads, libgnat/a-wtinau.adb: Change to generic
	package.
	* libgnat/a-wtinio.adb: Instantiate it.
	* libgnat/a-wtinio__128.adb: Likewise.
	* libgnat/a-wtmoau.ads, libgnat/a-wtmoau.adb: Change to generic
	package.
	* libgnat/a-wtmoio.adb: Instantiate it.
	* libgnat/a-wtmoio__128.adb: Likewise.
	* libgnat/a-ztgeau.ads (Load_Integer): New procedure.
	* libgnat/a-ztgeau.adb (Load_Integer): Likewise.
	* libgnat/a-ztinau.ads, libgnat/a-ztinau.adb: Change to generic
	package.
	* libgnat/a-ztinio.adb: Instantiate it.
	* libgnat/a-ztinio__128.adb: Likewise.
	* libgnat/a-ztmoau.ads, libgnat/a-ztmoau.adb: Change to generic
	package.
	* libgnat/a-ztmoio.adb: Instantiate it.
	* libgnat/a-ztmoio__128.adb: Likewise.