* gdb.cp/method2.exp: Output of overload menu is now

	* gdb.cp/method2.exp: Output of overload menu is now
	alphabetized.  Update tests for "break A::method".
	* gdb.cp/ovldbreak.exp: Use gdb_get_line_number instead
	of hard-coding them.
	Overload menu is alphabetized: rewrite to accommodate.
	Unset variables LINE and TYPES which are used in other tests.
	Compute the output of "info break".
	Update the breakpoint table after all breakpoints are deleted.
	(continue_to_bp_overloaded): Rename ACTUALS to ARGUMENT and
	compute ACTUALS and the method body based on parameters.
	Update expected output accordingly.
	* gdb.cp/ovldbreak.cc (foo::overload1arg): Reformat and add
	unique comments to allow the use of gdb_get_line_number.

	* gdb.cp/method2.exp: Use prepare_for_testing and cleanup
	some Tcl syntax.
	* gdb.cp/ovldbreak.exp: Likewise.