[Ada] No_Stream_Optimizations ignored for 'Class'Input

[Pierre-Marie de Rodat]

This patch fixes a bug in which if pragma Restrictions
(No_Stream_Optimizations) is in effect, it is ignored for T'Class'Input.
Revision 251886  was causing the compiler to bypass
No_Stream_Optimizations.

Tested on x86_64-pc-linux-gnu, committed on trunk

2019-07-05  Bob Duff  <duff@adacore.com>

gcc/ada/

	* exp_attr.adb (Input): Take the No_Stream_Optimizations
	restriction into account.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: patch.diff
Type: text/x-diff
Size: 3372 bytes
Desc: not available
URL: <http://gcc.gnu.org/pipermail/gcc-patches/attachments/20190705/d2078d11/attachment.bin>