re PR c++/9878 (error: non-lvalue in unary `&' wrongly issued)
PR c++/9878
* call.c (convert_class_to_reference): Correct conversion
sequences.
(reference_binding): Add ref_bound_directly_to_rvalue_p parameter.
(implicit_conversion): Adjust call to reference_binding.
(add_candidate): Change type of candidates parameter.
(add_function_candidate): Likewise.
(add_conv_candidate): Likewise.
(build_builtin_candidate): Likewise.
(add_builtin_candidate): Likewise.
(add_builtin_candidates): Likewise.
(add_template_candidate_real): Likewise.
(add_template_candidate): Likewise.
(add_template_conv_candidate): Likewise.
(build_user_type_conversion_1): Adjust accordingly.
(build_object_call): Likewise.
(build_conditional_expr): Likewise.
(add_candidates): Likewise.
(build_new_op): Likewise.
(convert_like_real): Use USER_CONV_CAND. Use build_nop.
(build_new_method_call): Adjust calls to add_function_candidate.
(make_temporary_var_for_ref_to_temp): New function.
(initialize_reference): Add decl parameter.
* class.c (build_rtti_vtbl_entries): Use build_address and
build_nop.
* cp-tree.h (initialize_reference): Change prototype.
(make_temporary_var_for_ref_to_temp): New function.
(build_type_conversion): Change prototype.
(build_address): New function.
(build_nop): Likewise.
* cvt.c (cp_convert_to_pointer): Adjust call to
build_type_conversion. Avoid indicating redundant NOP_EXPRs.
Use build_nop.
(convert_to_pointer_force): Use build_nop.
(build_up_reference): Use make_temporary_var_for_ref_to_temp.
(convert_to_reference): Adjust call to build_type_conversion.
(ocp_convert): Likewise.
(build_type_conversion): Remove for_sure parameter.
* decl.c (grok_reference_init): Use initialize_reference.
* typeck.c (build_address): New function.
(build_nop): Likewise.
(build_unary_op): Use them.
(build_ptrmemfunc): Tidy slightly.
(convert_for_initialization): Adjust call to
initialize_reference.
* typeck2.c (store_init_value): Remove #if 0'd code.
PR c++/9878
* g++.dg/init/ref1.C: New test.
From-SVN: r63735