2012-12-05 Robert Dewar <dewar@adacore.com>

	* lib-writ.adb (Write_ALI): Output T lines.
	* lib-writ.ads: Minor reformatting. Add documentation of T lines.
	* opt.ads (Generate_Target_Dependent_Info): New flag.
	* switch-c.adb (Scan_Switches): Recognize -gnatet switch
	(target dependent info).
	* ttypes.ads: Add four letter codes to declarations (for target
	dependent info).
	* usage.adb: Add line for -gnatet switch.

2012-12-05  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_prag.adb (Expand_N_Pragma): Add a call to expand
	pragma Loop_Variant.
	(Expand_Pragma_Loop_Assertion): Removed.
	(Expand_Pragma_Loop_Variant): New routine.
	* par-prag.adb: Remove Pragma_Loop_Assertion and add two new
	Pragma_Loop_Invariant and Pragma_Loop_Variant entries.
	* sem_attr.adb (Analyze_Attribute): Update the code which
	locates the enclosing pragma.
	* sem_prag.adb (Analyze_Pragma): Remove the code which analyzes
	pragma Loop_Assertion as the pragma is now obsolete. Add the
	machinery to checks the semantics of pragmas Loop_Invariant
	and Loop_Variant.
	(Check_Loop_Invariant_Variant_Placement): New routine.
	* snames.ads-tmpl: Remove name Loop_Assertion. Add new names
	Loop_Invariant and Loop_Variant.  Rename Name_Decreasing
	to Name_Decreases and Name_Increasing to Name_Increases.
	Remove the pragma Id for Loop_Assertion and add two new Ids for
	Loop_Invariant and Loop_Variant.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@194203 138bc75d-0d04-0410-961f-82ee72b054a4

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