; cperl-mode-resources: More test cases for cperl-mode.el

* test/lisp/progmodes/cperl-mode-resources/proto-and-attrs.pl:
Adapt to the signatures now available in cperl-mode.el

test/lisp/progmodes/cperl-mode-resources/proto-and-attrs.pl

@@ -12,12 +12,10 @@
 # are somewhat frowned upon most of the times, but they are required
 # for some Perl magic
 
-# FIXME: 2022-02-02 CPerl mode does not handle subroutine signatures.
-# In simple cases it mistakes them as prototypes, when attributes are
-# present, it doesn't handle them at all.  Variables in signatures
-# SHOULD be fontified like variable declarations.
-
 # Part 1: Named subroutines
+# A plain named subroutine without any optional stuff
+sub sub_0 { ...; }
+
 # A prototype and a trivial subroutine attribute
 {
     no feature 'signatures'; # that's a prototype, not a signature
@@ -30,10 +28,16 @@
 # A signature (these will soon-ish leave the experimental state)
 sub sub_3 ($foo,$bar) { ...; }
 
-# Attribute plus signature FIXME: Not yet supported
-sub bad_sub_4 :prototype($$$) ($foo,$bar,$baz) { ...; }
+# Attribute plus signature
+sub sub_4 :prototype($$$) ($foo,$bar,$baz) { ...; }
+
+# A signature with a trailing comma (weird, but legal)
+sub sub_5 ($foo,$bar,) { ...; }
 
 # Part 2: Same constructs for anonymous subs
+# A plain named subroutine without any optional stuff
+my $subref_0 = sub { ...; }
+
 # A prototype and a trivial subroutine attribute
 {
     no feature 'signatures'; # that's a prototype, not a signature