2011-09-02 Robert Dewar <dewar@adacore.com>

2011-09-02  Robert Dewar  <dewar@adacore.com>

	* prj-dect.adb, prj-env.adb, prj-nmsc.adb, prj-proc.adb, prj-tree.adb,
	prj.adb, prj.ads, sem_ch5.adb: Minor reformatting.

2011-09-02  Thomas Quinot  <quinot@adacore.com>

	* sem_attr.adb (Analyze_Attribute, case Unrestriced_Access):
	Guard against a prefix that is an N_Has_Entity but has no
	associated entity.

2011-09-02  Yannick Moy  <moy@adacore.com>

	* lib-xref-alfa.adb (Is_Alfa_Reference): Ignore IN parameters in Alfa
	references.

2011-09-02  Yannick Moy  <moy@adacore.com>

	* opt.ads (Warn_On_Suspicious_Contract): New warning flag.
	* sem_ch3.adb (Analyze_Declarations): Call checker for suspicious
	contracts.
	* sem_ch6.adb, sem_ch6.ads (Check_Subprogram_Contract): New
	procedure looking for suspicious postconditions.
	* usage.adb (Usage): New options -gnatw.t and -gnatw.T.
	* warnsw.adb (Set_Dot_Warning_Switch): Take into account new
	options -gnatw.t and -gnatw.T.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@178448 138bc75d-0d04-0410-961f-82ee72b054a4