With:
- master, 
- the tentative patch from PR25889 comment 2, and
- the submitted patch for PR25875 at
   https://sourceware.org/pipermail/gdb-patches/2020-April/168011.html,
we have for target board debug-types:
...
FAIL: gdb.ada/info_auto_lang.exp: language_choice=auto: frame=0, frame_lang=c: info types some_type
FAIL: gdb.ada/maint_with_ada.exp: maintenance check-psymtabs
FAIL: gdb.base/print-file-var.exp: lang=c: hidden=1: dlopen=0: version_id_main=0: sym1='print-file-var-lib2.c'::this_version_id,sym2=v2: 'print-file-var-lib2.c'::this_version_id == v2
FAIL: gdb.base/print-file-var.exp: lang=c: hidden=1: dlopen=0: version_id_main=1: sym1='print-file-var-lib1.c'::this_version_id,sym2=v1: 'print-file-var-lib1.c'::this_version_id == v1
FAIL: gdb.base/print-file-var.exp: lang=c: hidden=1: dlopen=0: version_id_main=1: sym1='print-file-var-lib2.c'::this_version_id,sym2=v2: 'print-file-var-lib2.c'::this_version_id == v2
FAIL: gdb.base/print-file-var.exp: lang=c: hidden=1: dlopen=1: version_id_main=0: sym1='print-file-var-lib2.c'::this_version_id,sym2=v2: 'print-file-var-lib2.c'::this_version_id == v2
FAIL: gdb.base/print-file-var.exp: lang=c: hidden=1: dlopen=1: version_id_main=1: sym1='print-file-var-lib1.c'::this_version_id,sym2=v1: 'print-file-var-lib1.c'::this_version_id == v1
FAIL: gdb.base/print-file-var.exp: lang=c: hidden=1: dlopen=1: version_id_main=1: sym1='print-file-var-lib2.c'::this_version_id,sym2=v2: 'print-file-var-lib2.c'::this_version_id == v2
FAIL: gdb.base/print-file-var.exp: lang=c++: hidden=1: dlopen=0: version_id_main=0: sym1='print-file-var-lib2.c'::this_version_id,sym2=v2: 'print-file-var-lib2.c'::this_version_id == v2
FAIL: gdb.base/print-file-var.exp: lang=c++: hidden=1: dlopen=0: version_id_main=1: sym1='print-file-var-lib1.c'::this_version_id,sym2=v1: 'print-file-var-lib1.c'::this_version_id == v1
FAIL: gdb.base/print-file-var.exp: lang=c++: hidden=1: dlopen=0: version_id_main=1: sym1='print-file-var-lib2.c'::this_version_id,sym2=v2: 'print-file-var-lib2.c'::this_version_id == v2
FAIL: gdb.base/print-file-var.exp: lang=c++: hidden=1: dlopen=1: version_id_main=0: sym1='print-file-var-lib2.c'::this_version_id,sym2=v2: 'print-file-var-lib2.c'::this_version_id == v2
FAIL: gdb.base/print-file-var.exp: lang=c++: hidden=1: dlopen=1: version_id_main=1: sym1='print-file-var-lib1.c'::this_version_id,sym2=v1: 'print-file-var-lib1.c'::this_version_id == v1
FAIL: gdb.base/print-file-var.exp: lang=c++: hidden=1: dlopen=1: version_id_main=1: sym1='print-file-var-lib2.c'::this_version_id,sym2=v2: 'print-file-var-lib2.c'::this_version_id == v2
FAIL: gdb.base/setshow.exp: annotation_level 2 (timeout)
FAIL: gdb.base/setshow.exp: annotation_level 1
FAIL: gdb.base/volatile.exp: ptype victor
FAIL: gdb.base/volatile.exp: ptype victory
FAIL: gdb.base/volatile.exp: ptype cavern
FAIL: gdb.base/volatile.exp: ptype vizier
FAIL: gdb.base/volatile.exp: ptype cove
FAIL: gdb.base/volatile.exp: ptype cavity
FAIL: gdb.base/volatile.exp: ptype vagary
FAIL: gdb.base/volatile.exp: ptype vendor
FAIL: gdb.cp/local-static.exp: c++: print 'S::method() const volatile'
FAIL: gdb.cp/local-static.exp: c++: print 'S::method() volatile const'
FAIL: gdb.cp/local-static.exp: c++: print 'S::method(void) const volatile'
FAIL: gdb.cp/local-static.exp: c++: print S::method(void) const volatile
FAIL: gdb.cp/local-static.exp: c++: print 'S::method(void) volatile const'
FAIL: gdb.cp/local-static.exp: c++: print S::method(void) volatile const
FAIL: gdb.cp/method.exp: ptype A
FAIL: gdb.cp/no-dmgl-verbose.exp: setting breakpoint at 'f(std::string)'
FAIL: gdb.cp/oranking.exp: p foo15 (vc)
FAIL: gdb.cp/pass-by-ref-2.exp: call cbvFourCCtor (c1v1)
FAIL: gdb.cp/ptype-cv-cp.exp: ptype v_const_volatile_my_int
FAIL: gdb.guile/scm-symtab.exp: test simple_struct in static symbols
FAIL: gdb.python/lib-types.exp: python print (str (const_volatile_class1_obj.type))
FAIL: gdb.python/py-symtab.exp: test simple_struct in static symbols
FAIL: gdb.python/py-xmethods.exp: before: g_size_diff 2
FAIL: gdb.python/py-xmethods.exp: before: g_size_mul 2
FAIL: gdb.python/py-xmethods.exp: before: g.mul<double>(2.0)
FAIL: gdb.python/py-xmethods.exp: before: g_mul 2
gdb compile failed, error: Unrecognized option: 'f'
gdb compile failed, error: Unrecognized option: 'f'
gdb compile failed, error: Unrecognized option: 'f'
gdb compile failed, error: Unrecognized option: 'f'
gdb compile failed, error: Unrecognized option: 'f'
gdb compile failed, error: Unrecognized option: 'f'
gdb compile failed, error: Unrecognized option: 'f'
gdb compile failed, error: Unrecognized option: 'f'
gdb compile failed, error: Unrecognized option: 'f'

                === gdb Summary ===

# of expected passes            78669
# of unexpected failures        42
# of expected failures          130
# of known failures             73
# of untested testcases         37
# of unsupported tests          83
...