Error(runtime::already_declared)

  💥 Identifier already declared
   ╭─[tests/diagnostics/already_declared_function.oy:1:1]
 1 │ ~foo{<
   ·  ─┬─
   ·   ╰── Identifier `foo` already declared here
 2 │     // Do something with foo
 3 │     // foo is cool name right?
 4 │ >}
 5 │ 
 6 │ // Create anouther foo
 7 │ ~foo{<
   ·  ─┬─
   ·   ╰── And you tried to declare it again here
 8 │     // Here we go again
 9 │ >}
   ╰────
  help: Try renaming `foo` or removing the previous declaration.
