[WIP] add error_squiggle gem

```
$ ./local/bin/ruby -e '1.time {}'
-e:1:in `<main>': undefined method `time' for 1:Integer (NoMethodError)

1.time {}
 ^^^^^
Did you mean?  times
```

https://bugs.ruby-lang.org/issues/17930

1 files changed, 2 insertions, 2 deletions

diff --git a/spec/ruby/core/exception/no_method_error_spec.rb b/spec/ruby/core/exception/no_method_error_spec.rb
index 570ffc47b1..a93ef2187e 100644
--- a/spec/ruby/core/exception/no_method_error_spec.rb
+++ b/spec/ruby/core/exception/no_method_error_spec.rb
@@ -110,14 +110,14 @@ describe "NoMethodError#message" do
       begin
         klass.foo
       rescue NoMethodError => error
-        error.message.lines.first.should == "undefined method `foo' for MyClass:Class"
+        error.message.lines.first.chomp.should == "undefined method `foo' for MyClass:Class"
       end
 
       mod = Module.new { def self.name; "MyModule"; end }
       begin
         mod.foo
       rescue NoMethodError => error
-        error.message.lines.first.should == "undefined method `foo' for MyModule:Module"
+        error.message.lines.first.chomp.should == "undefined method `foo' for MyModule:Module"
       end
     end
   end