ResultType redeclared in generated files if used more than once as Method -> Result using different views

[rozagerardo]

If I use the same ResultType in more than one Method -> Result sing different Views , the goa gen command generates a views/view.go declaring the type twice.

Naturally, if I try to build the project, the command fails:

# calc/gen/objects/views
gen\objects\views\view.go:25:6: ObjectMedia redeclared in this block
        previous declaration at gen\objects\views\view.go:17:6
gen\objects\views\view.go:91:6: ValidateObjectMedia redeclared in this block
        previous declaration at gen\objects\views\view.go:77:52

I have observed this for version 3.2.5, I was previously using version 3.2.0 and this issue was not present back then.

This might be related to this other reported bug, maybe they are both caused by the same issue:
#2681

Here I have reproduced the bug in a simple project:
https://github.com/rozagerardo/samples/tree/go/goa/bugs/redeclared-types

Here I'm using the ResultType in two different Methods:
https://github.com/rozagerardo/samples/blob/go/goa/bugs/redeclared-types/calc/design/design.go#L117

And this is the generated view.go file, declaring the type twice:
https://github.com/rozagerardo/samples/blob/go/goa/bugs/redeclared-types/calc/gen/objects/views/view.go#L16

[raphael]

Thank you for report and the repro, looks like a regression.