typeck.c (cxx_sizeof_or_alignof_type): Add location_t parameter and use it throughout.

/gcc/cp
2019-12-18  Paolo Carlini  <paolo.carlini@oracle.com>

	* typeck.c (cxx_sizeof_or_alignof_type): Add location_t parameter
	and use it throughout.
	(cxx_sizeof_expr): Likewise.
	(cxx_alignof_expr): Likewise.
	(cxx_sizeof_or_alignof_expr): Likewise.
	(cxx_alignas_expr): Update call.
	* decl.c (fold_sizeof_expr): Likewise.
	* pt.c (tsubst_copy): Likewise.
	(tsubst_copy_and_build): Likewise.
	* except.c (build_throw): Add location_t parameter and use it.
	(expand_end_catch_block): Update call.
	* parser.c (cp_parser_unary_expression): Update
	cxx_sizeof_or_alignof_type and cxx_sizeof_or_alignof_expr calls,
	pass the compound location.
	(cp_parser_throw_expression): Likewise pass the combined location
	to build_throw.
	* cp-tree.h: Update declarations.

	* semantics.c (finish_handler_parms): Use DECL_SOURCE_LOCATION.
	* decl2.c (check_classfn): Likewise.

	* except.c (is_admissible_throw_operand_or_catch_parameter):
	Exploit cp_expr_loc_or_input_loc in one place.

	* except.c (create_try_catch_expr): Remove, unused.

/libcc1
2019-12-18  Paolo Carlini  <paolo.carlini@oracle.com>

	* libcp1plugin.cc (plugin_build_unary_expr): Update build_throw
	and cxx_sizeof_or_alignof_expr calls.
	(plugin_build_unary_type_expr): Likewise for
	cxx_sizeof_or_alignof_type.

/gcc/testsuite
2019-12-18  Paolo Carlini  <paolo.carlini@oracle.com>

	* g++.dg/diagnostic/alignof2.C: New.
	* g++.dg/diagnostic/alignof3.C: Likewise.
	* g++.dg/diagnostic/incomplete-type-1.C: Likewise.
	* g++.dg/warn/Wcatch-value-3b.C: Likewise.
	* g++.dg/cpp0x/alignof3.C: Check location(s) too.
	* g++.dg/cpp1z/decomp-bitfield1.C: Likewise.
	* g++.dg/cpp1z/has-unique-obj-representations2.C: Likewise.
	* g++.dg/expr/sizeof3.C: Likewise.
	* g++.dg/ext/flexary6.C: Likewise.
	* g++.dg/ext/vla4.C: Likewise.
	* g++.dg/template/sizeof11.C: Likewise.
	* g++.dg/warn/Wcatch-value-1.C: Likewise.
	* g++.dg/warn/Wcatch-value-2.C: Likewise.
	* g++.dg/warn/Wcatch-value-3.C: Likewise.
	* g++.old-deja/g++.brendan/sizeof1.C: Likewise.
	* g++.old-deja/g++.brendan/sizeof3.C: Likewise.
	* g++.old-deja/g++.brendan/sizeof4.C: Likewise.
	* g++.old-deja/g++.eh/ctor1.C: Likewise.
	* g++.old-deja/g++.jason/ambig1.C: Likewise.
	* g++.old-deja/g++.other/sizeof4.C: Likewise.

From-SVN: r279543