When require in .irbrc fails with LoadError, error message will be suppressed

[tompng]

Description

If you write require 'something' in irbrc and it fails loading, IRB does not show error message.
I will be hard to know the reason why irbrc is not loaded.

Reproduce

With this .irbrc file

puts 'irbrc_loading'
require 'matrix'
puts 'foobarbaz'
foo.bar.baz

Normally, error in irbrc will be displayed.

[tomoya:irbrctest]% irb
irbrc_loading
foobarbaz
load error: /Users/tomoya/Desktop/irbrctest/.irbrc
NameError: undefined local variable or method `foo' for main:Object
	/Users/tomoya/Desktop/irbrctest/.irbrc:4:in `<top (required)>'
	/Users/tomoya/Documents/github/ruby/irb/lib/irb/init.rb:360:in `load'
	/Users/tomoya/Documents/github/ruby/irb/lib/irb/init.rb:360:in `run_config'
	/Users/tomoya/Documents/github/ruby/irb/lib/irb/init.rb:14:in `setup'
irb(main):001:0> 

But LoadError is suppressed (with empty Gemfile and bundle exec, require 'matrix' fails)

[tomoya:irbrctest]% cat Gemfile
# empty
[tomoya:irbrctest]% bundle exec irb
irbrc_loading
irb(main):001:0> 

Result of irb_info

irb(main):001:0> irb_info
=> 
Ruby version: 3.2.0
IRB version: irb 1.6.4 (2023-04-07)
InputMethod: RelineInputMethod with Reline 0.3.3 and /Users/tomoya/.inputrc
.irbrc path: /Users/tomoya/Desktop/irbrctest/.irbrc
RUBY_PLATFORM: x86_64-darwin20
LANG env: ja_JP.UTF-8
East Asian Ambiguous Width: 1

Terminal Emulator

macOS Terminal.app

Setting Files

Are you using ~/.irbrc and ~/.inputrc?
Using .irbrc. contents are written above.

[st0012]

I think it's this line that suppresses it. And the rescue of LoadError was added from the very beginning of IRB, so I'm not sure why that's added.
But I think we can remove it now to provide a more helpful feedback to users.