>From a language user's point of view, the following understanding seems to
work:
- A named ("defined") type has one or more names ("identifiers")
- A type definition creates a new named type, distinct from all others
- An alias declaration adds a new name to an existing type
This does beg the question:
type Foo int
type Bar = Foo
var a Bar
What is the type of 'a'? Is it "Bar", or is it
"the-type-known-as-Foo-or-Bar"? What type should error messages show?
Testing shows that the type of a "Foo":
https://play.golang.org/p/fVpDaEN0OVG
So my simple understanding seems sufficient, at least in this simple case.
Error messages just show the first of the (perhaps many) names that the
type has.
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