[lto][patch] Make input_tree return a tree

[Rafael Espindola]

With my last cleanup patch, input_tree can now return a tree.

gcc/
2008-09-30 Rafael Espindola  <espindola@google.com>

	* lto-function-in.c (input_tree): Remove slot argument. Return a tree.
	(input_field_decl, input_function_decl, input_var_decl, input_parm_decl,
	input_result_decl, input_type_decl, input_label_decl,
	input_namespace_decl, input_translation_unit_decl, input_binfo,
	input_type, input_tree_operand): Use new input_tree signature.
	* lto-tree-in.h (input_tree): Update signature.

gcc/lto/
2008-09-30 Rafael Espindola  <espindola@google.com>

	* lto.c (lto_read_decls): Use new input_tree signature.

Cheers,
-- 
Rafael Avila de Espindola

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