ada-tree.def (LOOP_STMT, EXIT_STMT): Update documentation.

ada-tree.def (LOOP_STMT, EXIT_STMT): Update documentation.

	* ada-tree.def (LOOP_STMT, EXIT_STMT): Update documentation.
	* ada-tree.h (EXIT_STMT_LABEL): Renamed from EXIT_STMT_LOOP.
	* decl.c (gnat_to_gnu_entity): Also set force_global for imported
	subprograms.
	* trans.c (gnu_loop_label_stack): Renamed from gnu_loop_stmt_stack;
	all callers changed.
	(gnat_to_gnu, case N_Loop_Statement, case N_Exit_Statement): Change
	the way that EXIT_STMT finds the loop label.
	(gnat_gimplify_stmt, case LOOP_STMT, EXIT_STMT): Likewise.
	(gnat_gimplify_stmt, case DECL_STMT): Handle variable-sized decls here.
	(add_stmt): Use annotate_with_locus insted of setting directly.
	(pos_to_construct): Set TREE_PURPOSE of each entry to index.
	(gnat_stabilize_reference, case ARRAY_RANGE_REF): Merge with ARRAY_REF.
	* utils.c (gnat_install_builtins): Install __builtin_memcmp.
	(build_vms_descriptor): Add extra args to ARRAY_REF.
	(convert): Use VIEW_CONVERT_EXPR between aggregate types.
	* utils2.c (gnat_truthvalue_conversion, case INTEGER_CST, REAL_CST):
	New cases.
	(build_binary_op): Don't make explicit CONVERT_EXPR.
	Add extra rgs to ARRAY_REF.

From-SVN: r83103