sem_util.ads (Find_Specific_Type): Moved here from exp_disp.adb.

sem_util.ads (Find_Specific_Type): Moved here from exp_disp.adb.

2014-07-31  Ed Schonberg  <schonberg@adacore.com>

	* sem_util.ads (Find_Specific_Type): Moved here from exp_disp.adb.
	* sem_util.adb (Find_Specific_Type): If type is untagged private,
	retrieve full view so that primitive operations can be located.
	* exp_disp.adb Move Find_Specific_Type to sem_util.
	* exp_ch4.adb (Expand_N_Op_Eq): If operands are class-wide, use
	Find_Specific_Type to locate primitive equality.
	* exp_util.adb (Make_CW_Equivalent_Type): A class_wide equivalent
	type does not require initialization.
	* exp_attr.adb (Compile_Stream_Body_In_Scope): Within an instance
	body all visibility is established, and the enclosing package
	declarations must not be installed.

From-SVN: r213345