2008-04-08 Hristian Kirtchev <kirtchev@adacore.com>

	    Ed Schonberg  <schonberg@adacore.com>
	    Robert Dewar  <dewar@adacore.com>

	* exp_ch2.adb: Minor reformatting.
	(Expand_Entry_Index_Parameter): Set the type of the identifier.
	(Expand_Entry_Reference): Add call to Expand_Protected_Component.
	(Expand_Protected_Component): New routine.
	(Expand_Protected_Private): Removed.
	Add Sure parameter to Note_Possible_Modification calls

	* sem_ch12.ads, sem_ch12.adb (Analyze_Subprogram_Instantiation): The
	generated subprogram declaration must inherit the overriding indicator
	from the instantiation node.
	(Validate_Access_Type_Instance): If the designated type of the actual is
	a limited view, use the available view in all cases, not only if the
	type is an incomplete type.
	(Instantiate_Object):  Actual is illegal if the formal is null-excluding
	and the actual subtype does not exclude null.
	(Process_Default): Handle properly abstract formal subprograms.
	(Check_Formal_Package_Instance): Handle properly defaulted formal
	subprograms in a partially parameterized formal package.
	Add Sure parameter to Note_Possible_Modification calls
	(Validate_Derived_Type_Instance): if the formal is non-limited, the
	actual cannot be limited.
	(Collect_Previous_Instances): Generate instance bodies for subprograms
	as well.

	* sem_ch13.adb (Analyze_Attribute_Definition_Clause, case Small): Don't
	try to set RM_Size.
	Add Sure parameter to Note_Possible_Modification calls
	(Analyze_At_Clause): Preserve Comes_From_Source on Rewrite call
	(Analyze_Attribute_Definition_Clause, case Attribute_Address): Check for
	constant overlaid by variable and issue warning.
	Use new Is_Standard_Character_Type predicate
	(Analyze_Record_Representation_Clause): Check that the specified
	Last_Bit is not less than First_Bit - 1.
	(Analyze_Attribute_Definition_Clause, case Address): Check for
	self-referential address clause

	* sem_ch5.ads, sem_ch5.adb (Diagnose_Non_Variable_Lhs): Rewrite the
	detection mechanism when the lhs is a prival.
	(Analyze_Assignment): Call Check_Unprotected_Access to detect
	assignment of a pointer to protected data, to an object declared
	outside of the protected object.
	(Analyze_Loop_Statement): Check for unreachable code after loop
	Add Sure parameter to Note_Possible_Modication calls
	Protect analysis from previous syntax error such as a scope mismatch
	or a missing begin.
	(Analyze_Assignment_Statement): The assignment is illegal if the
	left-hand is an interface.

	* sem_res.adb (Resolve_Arithmetic_Op): For mod/rem check violation of
	restriction No_Implicit_Conditionals
	Add Sure parameter to Note_Possible_Modication calls
	Use new Is_Standard_Character_Type predicate
	(Make_Call_Into_Operator): Preserve Comes_From_Source when rewriting
	call as operator. Fixes problems (e.g. validity checking) which
	come from the result looking as though it does not come from source).
	(Resolve_Call): Check case of name in named parameter if style checks
	are enabled.
	(Resolve_Call): Exclude calls to Current_Task as entry formal defaults
	from the checking that such calls should not occur from an entry body.
	(Resolve_Call): If the return type of an Inline_Always function
	requires the secondary stack, create a transient scope for the call
	if the body of the function is not available for inlining.
	(Resolve_Actuals): Apply Ada2005 checks to view conversions of arrays
	that are actuals for in-out formals.
	(Try_Object_Operation): If prefix is a tagged protected object,retrieve
	primitive operations from base type.
	(Analyze_Selected_Component): If the context is a call to a protected
	operation the parent may be an indexed component prior to expansion.
	(Resolve_Actuals): If an actual is of a protected subtype, use its
	base type to determine whether a conversion to the corresponding record
	is needed.
	(Resolve_Short_Circuit): Handle pragma Check

	* sem_eval.adb: Minor code reorganization (usea Is_Constant_Object)
	Use new Is_Standard_Character_Type predicate
	(Eval_Relational_Op): Catch more cases of string comparison



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@134027 138bc75d-0d04-0410-961f-82ee72b054a4

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