Auto merge of #1908 - voxik:fix-inspect, r=segiddins

Prevent negative IDs in output of #inspect.

# Description:

object_id might be negative, since Ruby tries to avoid Bignums:

https://bugs.ruby-lang.org/issues/13397
(cherry picked from commit ca35855)

Author: homu

lib/rubygems/dependency_list.rb

@@ -104,7 +104,7 @@ def find_name(full_name)
   end
 
   def inspect # :nodoc:
-    "#<%s:0x%x %p>" % [self.class, object_id, map { |s| s.full_name }]
+    "%s %p>" % [super[0..-2], map { |s| s.full_name }]
   end
 
   ##

lib/rubygems/platform.rb

@@ -112,7 +112,7 @@ def initialize(arch)
   end
 
   def inspect
-    "#<%s:0x%x @cpu=%p, @os=%p, @version=%p>" % [self.class, object_id, *to_a]
+    "%s @cpu=%p, @os=%p, @version=%p>" % [super[0..-2], *to_a]
   end
 
   def to_a

lib/rubygems/specification.rb

@@ -2102,7 +2102,7 @@ def inspect # :nodoc:
     if $DEBUG
       super
     else
-      "#<#{self.class}:0x#{__id__.to_s(16)} #{full_name}>"
+      "#{super[0..-2]} #{full_name}>"
     end
   end