Object Is Not Unique

High-level object names must be unique across the package.

Incorrect:

foo.eo:

+package foo

# Foo.
[] > foo

bar.eo:

+package foo

# Bar.
[] > foo

Correct:

foo.eo:

+package foo

# Foo.
[] > foo

bar.eo:

+package foo

# Bar.
[] > bar