PR5516: assignment to $pointers

PR5516: assignment to $pointers

2008-03-03  Frank Ch. Eigler  <fche@elastic.org>

	PR5516
	* elaborate.cxx (symbol_fetcher, dead_assignment_remover):
	Support unresolved $target lvalues.  Propagate pretty error
	messages.
	* staptree.cxx (varuse_collecting_visitor target_symbol): Ditto.
	* staptree.h: Corresponding decl.

	* loc2c.c: c_translate_pointer_store: New function.
	* loc2c.h: Corresponding decl.
	* tapsets.cxx (dwflpp::translate_final_fetch_or_store): Call it
	for $target pointer assignments.

2008-03-03  Frank Ch. Eigler  <fche@elastic.org>

	PR5516
	* buildok/twentynine.stp: New test.