chore: adding tests for multiple structs defined in the same type

[manuelarte]

I added a test to cover the case:

type (

	MyStruct struct {}
	
	MyStruct2 struct{}

)

the linter is not checking for constructors or methods for this type.

What do you guys @ldez, @alexandear & @ccoVeille think?

[ldez]

It's a choice; there is no right or wrong approach here.

[manuelarte]

It's a choice; there is no right or wrong approach here.

good point, right now it's not getting processed, do you think it's a good idea that this linter also "handle" this scenario?
if so, by default? or under a setting?

[ldez]

I think grouping type is an explicit way to say you want to group types first, so suggesting to split the group does not follow the expected style.

Grouping types is a too "squared" style for me, but in this context, grouping types is superior to order methods and functions.

[manuelarte]

actually I updated the tests to properly test a scenario, and the linter is handling it.

[manuelarte]

@ldez shall we merge this PR (to keep track of the current behaviour), and leave the linter as it is?

[ccoVeille]

LGTM