2010-06-14 Robert Dewar <dewar@adacore.com>

	* opt.ads (Check_Policy_List): Add some clarifying comments
	* sem_prag.adb (Analyze_Pragma, case Check): Set Pragma_Enabled flag
	on rewritten Assert pragma.

2010-06-14  Gary Dismukes  <dismukes@adacore.com>

	* sem_ch6.adb (Check_Overriding_Indicator): Add a special check for
	controlled operations, so that they will be treated as overriding even
	if the overridden subprogram is marked Is_Hidden, as long as the
	overridden subprogram's parent subprogram is not hidden.

2010-06-14  Robert Dewar  <dewar@adacore.com>

	* debug.adb: Entry for gnatw.d no longer specific for while loops
	* einfo.adb (First_Exit_Statement): New attribute for E_Loop
	* einfo.ads (First_Exit_Statement): New attribute for E_Loop
	* sem_ch5.adb (Analyze_Loop_Statement): Check_Infinite_Loop_Warning has
	new calling sequence to include test for EXIT WHEN.
	(Analyze_Exit_Statement): Chain EXIT statement into exit statement chain
	* sem_warn.ads, sem_warn.adb (Check_Infinite_Loop_Warning): Now handles
	EXIT WHEN case.
	* sinfo.adb (Next_Exit_Statement): New attribute of N_Exit_Statement
	node.
	* sinfo.ads (N_Pragma): Correct comment on Sloc field (points to
	PRAGMA, not to pragma identifier).
	(Next_Exit_Statement): New attribute of N_Exit_Statement node

2010-06-14  Robert Dewar  <dewar@adacore.com>

	* sem_res.adb (Resolve_Short_Circuit): Fix sloc of "assertion/check
	would fail" msg.

2010-06-14  Robert Dewar  <dewar@adacore.com>

	* par-ch2.adb (Scan_Pragma_Argument_Association): Clarify message for
	missing pragma argument identifier.

2010-06-14  Robert Dewar  <dewar@adacore.com>

	* atree.ads, atree.adb (Ekind_In): New functions

2010-06-14  Robert Dewar  <dewar@adacore.com>

	* exp_ch4.adb (Expand_N_Op_Expon): Optimize 2**N in stand alone context

2010-06-14  Robert Dewar  <dewar@adacore.com>

	* usage.adb (Usage): Redo documentation of -gnatwa.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@160743 138bc75d-0d04-0410-961f-82ee72b054a4

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