decl.c (get_type_quals, [...]): New.

decl.c (get_type_quals, [...]): New.

/cp
2019-07-10  Paolo Carlini  <paolo.carlini@oracle.com>

	* decl.c (get_type_quals,
	smallest_type_location (const cp_decl_specifier_seq*)): New.
	(check_tag_decl): Use smallest_type_location in error_at about
	multiple types in one declaration.
	(grokdeclarator): Use locations[ds_complex] in error_at about
	complex invalid; use locations[ds_storage_class] in error_at
	about static cdtor; use id_loc in error_at about flexible
	array member in union; use get_type_quals.

/testsuite
2019-07-10  Paolo Carlini  <paolo.carlini@oracle.com>

	* g++.dg/diagnostic/complex-invalid-1.C: New.
	* g++.dg/diagnostic/static-cdtor-1.C: Likewise.
	* g++.dg/cpp1z/has-unique-obj-representations2.C: Test location
	too.
	* g++.dg/other/anon-union3.C: Adjust expected location.
	* g++.dg/parse/error8.C: Likewise.

From-SVN: r273323