2012-06-12  Robert Dewar  <dewar@adacore.com>

	* sem_ch12.adb: Minor reformatting.

2012-06-12  Eric Botcazou  <ebotcazou@adacore.com>

	* opt.ads (Inline_Level): New variable.
	* gnat1drv.adb (Adjust_Global_Switches): Set it based on optimization
	level if it has not been set by the user.
	* switch-c.adb (Scan_Front_End_Switches): Accept -gnatn1 and -gnatn2
	and set Inline_Level accordingly.
	* inline.adb (Add_Inlined_Body): Declate new Inline_Level_Type type.
	(Must_Inline): Return Inline_Level_T instead of Boolean to indicate
	whether the package of the inlined subprogram must be compiled.
	If Inline_Level is set to 1, only compile packages of subprograms
	directly called from the main unit.
	* usage.adb (Usage): Adjust line for -gnatn switch.
	* gnat_ugn.texi (Switches for gcc): Document -gnatn1 and -gnatn2.

From-SVN: r188451