2016-04-21 Javier Miranda <miranda@adacore.com>

2016-04-21  Javier Miranda  <miranda@adacore.com>

	* sem_ch6.adb (Build_Subprogram_Declaration): Propagate the
	attribute Rewritten_For_C to the body since since the expander
	may generate calls using that entity.
	* exp_ch6.adb (Expand_Call): For internally generated
	calls ensure that they reference the entity of the spec
	of the called function.
	(Rewritten_For_C_Func_Id): New subprogram.
	(Rewritten_For_C_Proc_Id): New subprogram.
	(Rewrite_Function_Call_For_C): Invoke the new subprogram to
	ensure that we skip freezing entities.
	* exp_util.adb (Build_Procedure_Form): No action needed if the
	procedure was already built.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@235305 138bc75d-0d04-0410-961f-82ee72b054a4