* gdb.base/callfuncs.exp: Remove the compiler info file prior to

	* gdb.base/callfuncs.exp: Remove the compiler info file prior to
	attempting to regenerate it.  Eliminate use of a temporary file
	and just generate the info file directly.  Source it immediately,
	for consistency of use.
	* gdb.base/corefile.exp: Ditto
	* gdb.base/exprs.exp: Ditto.
	* gdb.base/funcargs.exp: Ditto.
	* gdb.base/langs.exp: Ditto.
	* gdb.base/list.exp: Ditto.
	* gdb.base/mips_pro.exp: Ditto.
	* gdb.base/nodebug.exp: Ditto.
	* gdb.base/opaque.exp: Ditto.
	* gdb.base/ptype.exp: Ditto.
	* gdb.base/scope.exp: Ditto.
	* gdb.base/setvar.exp: Ditto.
	* gdb.base/signals.exp: Ditto.
	* gdb.base/whatis.exp: Ditto.
	* gdb.c++/templates.exp: Ditto.
	* gdb.c++/virtfunc.exp: Ditto.
	* gdb.c++/virtfunc.exp: Use contents of gcc_compiled to decide
 	whether or not to add -lstdc++ to the compile command line args.