exp_ch6.adb (Check_View_Conversion): Created this function to properly chain calls...

exp_ch6.adb (Check_View_Conversion): Created this function to properly chain calls to check type invariants that may...

2017-01-12  Justin Squirek  <squirek@adacore.com>

	* exp_ch6.adb (Check_View_Conversion): Created this function
	to properly chain calls to check type invariants that may be
	present in a subprogram call after the subprogram.
	(Expand_Call): Add a conditional to identify when a view conversion
	needs to be checked.
	* nlists.adb, nlists.ads (Prepend_New): New routine.
	(Prepend_New_To): New routine.

From-SVN: r244354