deparse doesn't handle classes

[tonycoz]

Module:

Trying to deparse a method of a class produces a message and incorrect code:

$ ./perl -Ilib -Mfeature=class -MO=Deparse -e 'class A { method b {} }'
class is experimental at -e line 1.
method is experimental at -e line 1.
unexpected OP_METHSTART at lib/B/Deparse.pm line 1677.
use feature 'class';
{
    ();
    package A;
    sub b : method {
        XXX;
        ();
    }
}
-e syntax OK

fields are also not deparsed:

$ ./perl -Ilib -Mfeature=class -MO=Deparse -e 'class A { field $x; method x { $x } }'
class is experimental at -e line 1.
field is experimental at -e line 1.
method is experimental at -e line 1.
unexpected OP_METHSTART at lib/B/Deparse.pm line 1677.
use feature 'class';
{
    package A;
    ;
    sub x : method {
        XXX;
        $x;
    }
}
-e syntax OK

Steps to Reproduce

See above.

Expected behavior

Deparse handles the OP_METHSTART and emits the field declarations.

Perl configuration

Summary of my perl5 (revision 5 version 41 subversion 7) configuration:
  Commit id: f254d774f8489de819d97ce662af2dbe3eb9f12b
  Platform:
    osname=linux
    osvers=6.1.0-25-amd64
    archname=x86_64-linux-thread-multi
    uname='linux venus 6.1.0-25-amd64 #1 smp preempt_dynamic debian 6.1.106-3 (2024-08-26) x86_64 gnulinux '
    config_args='-des -Dusedevel -Dusethreads'
    hint=recommended
    useposix=true
    d_sigaction=define
    useithreads=define
    usemultiplicity=define
    use64bitint=define
    use64bitall=define
    uselongdouble=undef
    usemymalloc=n
    default_inc_excludes_dot=define
  Compiler:
    cc='cc'
    ccflags ='-D_REENTRANT -D_GNU_SOURCE -fwrapv -fno-strict-aliasing -pipe -fstack-protector-strong -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -D_FORTIFY_SOURCE=2'
    optimize='-O2'
    cppflags='-D_REENTRANT -D_GNU_SOURCE -fwrapv -fno-strict-aliasing -pipe -fstack-protector-strong -I/usr/local/include'
    ccversion=''
    gccversion='12.2.0'
    gccosandvers=''
    intsize=4
    longsize=8
    ptrsize=8
    doublesize=8
    byteorder=12345678
    doublekind=3
    d_longlong=define
    longlongsize=8
    d_longdbl=define
    longdblsize=16
    longdblkind=3
    ivtype='long'
    ivsize=8
    nvtype='double'
    nvsize=8
    Off_t='off_t'
    lseeksize=8
    alignbytes=8
    prototype=define
  Linker and Libraries:
    ld='cc'
    ldflags =' -fstack-protector-strong -L/usr/local/lib'
    libpth=/usr/local/lib /usr/lib/x86_64-linux-gnu /usr/lib /usr/lib64
    libs=-lpthread -lgdbm -ldl -lm -lcrypt -lutil -lc -lgdbm_compat
    perllibs=-lpthread -ldl -lm -lcrypt -lutil -lc
    libc=/lib/x86_64-linux-gnu/libc.so.6
    so=so
    useshrplib=false
    libperl=libperl.a
    gnulibc_version='2.36'
  Dynamic Linking:
    dlsrc=dl_dlopen.xs
    dlext=so
    d_dlsymun=undef
    ccdlflags='-Wl,-E'
    cccdlflags='-fPIC'
    lddlflags='-shared -O2 -L/usr/local/lib -fstack-protector-strong'


Characteristics of this binary (from libperl): 
  Compile-time options:
    HAS_LONG_DOUBLE
    HAS_STRTOLD
    HAS_TIMES
    MULTIPLICITY
    PERLIO_LAYERS
    PERL_COPY_ON_WRITE
    PERL_DONT_CREATE_GVSV
    PERL_HASH_FUNC_SIPHASH13
    PERL_HASH_USE_SBOX32
    PERL_MALLOC_WRAP
    PERL_OP_PARENT
    PERL_PRESERVE_IVUV
    PERL_USE_DEVEL
    PERL_USE_SAFE_PUTENV
    USE_64_BIT_ALL
    USE_64_BIT_INT
    USE_ITHREADS
    USE_LARGE_FILES
    USE_LOCALE
    USE_LOCALE_COLLATE
    USE_LOCALE_CTYPE
    USE_LOCALE_NUMERIC
    USE_LOCALE_TIME
    USE_PERLIO
    USE_PERL_ATOF
    USE_REENTRANT_API
    USE_THREAD_SAFE_LOCALE
  Built under linux
  Compiled at Nov 25 2024 10:56:52
  %ENV:
    PERLBREW_BASHRC_VERSION="0.43"
    PERLBREW_HOME="/home/tony/.perlbrew"
    PERLBREW_MANPATH=""
    PERLBREW_PATH="/home/tony/perl5/perlbrew/bin"
    PERLBREW_ROOT="/home/tony/perl5/perlbrew"
    PERLBREW_VERSION="0.67"
  @INC:
    lib
    /usr/local/lib/perl5/site_perl/5.41.7/x86_64-linux-thread-multi
    /usr/local/lib/perl5/site_perl/5.41.7
    /usr/local/lib/perl5/5.41.7/x86_64-linux-thread-multi
    /usr/local/lib/perl5/5.41.7