2007-04-20 Robert Dewar <dewar@adacore.com>

2007-04-20  Robert Dewar  <dewar@adacore.com>
	    Arnaud Charlet  <charlet@adacore.com>

	* sem_ch13.adb (Analyze_Attribute_Definition_Clause, case Stream_Size):
	Check for restriction No_Implementation_Attributes if in Ada 95 mode.
	(Storage_Pool): Do not crash when RE_Stack_Bounded_Pool is not available
	(Analyze_Attribute_Definition_Clause [External_Tag]): Generate error
	message when using a VM, since this attribute is not supported.
	(Analyze_Record_Representation_Clause): Give unrepped component warnings

	* usage.adb: Add new warning for renaming of function return objects
	Indicate that -gnatwp and -gnatwP concern front-end inlining
	Add line for -gnatyg
	Add usage information for -gnatw.c/C

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@125449 138bc75d-0d04-0410-961f-82ee72b054a4