* elf32-arm.c (elf32_arm_check_relocs): Use call_reloc_p,
may_need_local_target_p and may_become_dynamic_p to classify
the relocation type. Don't check info->symbolic or h->def_regular
when deciding whether to record a potential dynamic reloc.
Don't treat potential dynamic relocs as PLT references.
(elf32_arm_gc_sweep_hook): Update to match. Assert that we don't
try to make the PLT reference count go negative.
ld/testsuite/
* ld-arm/arm-lib-plt-2a.s, ld-arm/arm-lib-plt-2b.s,
ld-arm/arm-lib-plt-2.dd, ld-arm/arm-lib-plt-2.rd: New tests.
* ld-arm/arm-elf.exp: Run them.
