Calling a static method on a type with no static method gives `undeclared module` error

[huonw]

rusti> enum Foo{Bar} Foo::doesnt_exist()
rust: ~"\"!!! (resolving module in lexical scope) module wasn\\\'t actually a module!\""
<anon>:16:0: 16:17 error: unresolved name
<anon>:16 Foo::doesnt_exist();
          ^~~~~~~~~~~~~~~~~
<anon>:16:0: 16:17 error: use of undeclared module `Foo`
<anon>:16 Foo::doesnt_exist();
          ^~~~~~~~~~~~~~~~~
<anon>:16:0: 16:17 error: unresolved name `Foo::doesnt_exist`.
<anon>:16 Foo::doesnt_exist();
          ^~~~~~~~~~~~~~~~~
error: aborting due to 3 previous errors
rust: task failed at 'explicit failure', /home/huon/rust/src/libsyntax/diagnostic.rs:96
rusti> enum Foo{Bar} impl Foo { fn exists() {} } Foo::doesnt_exist()
<anon>:19:0: 19:17 error: unresolved name `Foo::doesnt_exist`.
<anon>:19 Foo::doesnt_exist();
          ^~~~~~~~~~~~~~~~~
error: aborting due to previous error

This is pretty confusing, it'd be nice to at least mention that there isn't a static method with that name like in the second run where there is another static method.

I presume this is because static methods create a secret mod with the same name as the type, one possible resolution would be to always create this mod rather than only doing so when required.

[thestinger]

triage bump

[huonw]

New example:

struct Foo;
fn main() {
    Foo::bar();
}

ERROR:rustc::middle::resolve: !!! (resolving module in lexical scope) module wasn't actually a module!
<anon>:18:21: 18:29 error: unresolved name
<anon>:18         struct Foo; Foo::bar()
                              ^~~~~~~~
<anon>:18:21: 18:29 error: use of undeclared module `Foo`
<anon>:18         struct Foo; Foo::bar()
                              ^~~~~~~~
ERROR:rustc::middle::resolve: !!! (resolving module in lexical scope) module wasn't actually a module!
<anon>:18:21: 18:29 error: unresolved name `Foo::bar`.
<anon>:18         struct Foo; Foo::bar()
                              ^~~~~~~~
error: aborting due to 3 previous errors
playpen: application terminated with error code 101

(The ERROR lines should disappear after #14239 lands.)