2011-08-05 Bob Duff <duff@adacore.com>

2011-08-05  Bob Duff  <duff@adacore.com>

	* sinfo.ads, sinfo.adb (Subpool_Handle_Name): New attribute for
	subpools.
	* par-ch4.adb (P_Allocator): Parse new subpool specification syntax.

2011-08-05  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch4.adb (Try_Container_Indexing): New procedure to implement the
	general indexing aspects of Ada2012. Called when analyzing indexed
	components when other interpretations fail.
	* sem_ch8.adb (Find_Direct_Name): check for implicit dereference only
	in an expression context where overloading is meaningful. This excludes
	the occurrence in an aspect specification (efficiency only).
	* sem_attr.adb (Analyze_Attribute): indicate that the attributes
	related to iterators can be set by an attribute specification, but
	cannot be queried.
	* sem_ch13.adb (Analyze_Aspect_Specifications): handle
	Constant_Indexing and Variable_Indexing.
	(Check_Indexing_Functions): New procedure to perform legality checks.
	Additional semantic checks at end of declarations.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@177446 138bc75d-0d04-0410-961f-82ee72b054a4