Fix PR c++/7612.
* cplus-dem.c (demangle_signature): Call string_delete.
Remove extra string_init.
(demangle_arm_hp_template): Call string_delete instead of
string_clear. Add missing string_delete call.
(demangle_qualified): Add missing string_delete call.
(do_type): Remove unused variable btype. Add missing string_delete
call. Call string_delete instead of string_clear.
(demangle_fund_type): Move variable btype inside of the switch
statement. Add missing string_delete call.
(do_arg): Call string_delete instead of string_clear. Remove extra
string_init.
(demangle_nested_args): Free work->previous_argument.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@62852
138bc75d-0d04-0410-961f-
82ee72b054a4