PR c/70756
	* c-common.c (pointer_int_sum): Call size_in_bytes_loc instead of
	size_in_bytes and pass LOC to it.

	* c-decl.c (build_compound_literal): Pass LOC down to
	c_incomplete_type_error.
	* c-tree.h (require_complete_type): Adjust declaration.
	(c_incomplete_type_error): Likewise.
	* c-typeck.c (require_complete_type): Add location parameter, pass it
	down to c_incomplete_type_error.
	(c_incomplete_type_error): Add location parameter, pass it down to
	error_at.
	(build_component_ref): Pass location down to c_incomplete_type_error.
	(default_conversion): Pass location down to require_complete_type.
	(build_array_ref): Likewise.
	(build_function_call_vec): Likewise.
	(convert_arguments): Likewise.
	(build_unary_op): Likewise.
	(build_c_cast): Likewise.
	(build_modify_expr): Likewise.
	(convert_for_assignment): Likewise.
	(c_finish_omp_clauses): Likewise.

	* call.c (build_new_op_1): Pass LOC to cp_build_modify_expr.
	* cp-tree.h (cp_build_modify_expr): Update declaration.
	(cxx_incomplete_type_error, cxx_incomplete_type_diagnostic): New inline
	overloads.
	* cp-ubsan.c (cp_ubsan_dfs_initialize_vtbl_ptrs): Pass INPUT_LOCATION to
	cp_build_modify_expr.
	* decl2.c (set_guard): Likewise.
	(handle_tls_init): Likewise.
	* init.c (perform_member_init): Likewise.
	(expand_virtual_init): Likewise.
	(build_new_1): Likewise.
	(build_vec_delete_1): Likewise.
	(get_temp_regvar): Likewise.
	(build_vec_init): Likewise.
	* method.c (do_build_copy_assign): Likewise.
	(assignable_expr): Likewise.
	* semantics.c (finish_omp_for): Likewise.
	* typeck.c (cp_build_binary_op): Pass LOCATION to pointer_diff and
	cp_pointer_int_sum.
	(cp_pointer_int_sum): Add location parameter.  Pass it down to
	pointer_int_sum.
	(pointer_diff): Add location parameter.  Use it.
	(build_modify_expr): Pass location down to cp_build_modify_expr.
	(cp_build_modify_expr): Add location parameter.  Use it.
	(build_x_modify_expr): Pass location down to cp_build_modify_expr.
	* typeck2.c (cxx_incomplete_type_diagnostic,
	cxx_incomplete_type_error): Add location parameter.

	* langhooks-def.h (lhd_incomplete_type_error): Adjust declaration.
	* langhooks.c (lhd_incomplete_type_error): Add location parameter.
	* langhooks.h (incomplete_type_error): Likewise.
	* tree.c (size_in_bytes_loc): Renamed from size_in_bytes.  Add location
	parameter, pass it down to incomplete_type_error.
	* tree.h (size_in_bytes): New inline overload.
	(size_in_bytes_loc): Renamed from size_in_bytes.

	* c-c++-common/pr70756-2.c: New test.
	* c-c++-common/pr70756.c: New test.

From-SVN: r236180