* jv-lang.c (jv_dynamics_objfile_data_key)
(jv_type_objfile_data_key): New globals.
(class_symtab): Move earlier.
(jv_per_objfile_free): New function.
(get_dynamics_objfile): Call set_objfile_data. Add 'gdbarch'
parameter.
Remove ancient #if 1.
(add_class_symbol): Remove redundant declaration.
(java_lookup_class): Use alloc_type, not alloc_type_arch.
(java_link_class_type): Mark as static. Update.
(jv_clear_object_type): New function.
(set_java_object_type): Likewise.
(get_java_object_type): Use set_java_object_type.
(is_object_type): Likewise.
(_initialize_java_language): Register new objfile keys.
(get_java_class_symtab): Add 'gdbarch' parameter.
(add_class_symtab_symbol): Update.
(type_from_class): Update.