[warning] already initialized constant Foo::A

The warning [warning] already initialized constant Foo::A is displayed.
When a class with constants exists in an RBS file that has already been created.

Ruby TypeProf Playground
https://mame.github.io/typeprof-playground/#rb=class+Foo%0A++A+%3D+1%0Aend%0A&rbs=class+Foo%0A++A%3A+Integer%0Aend

Ruby

class Foo
  A = 1
end

RBS

class Foo
  A: Integer
end

Output

# TypeProf 0.15.0

# Errors
test.rb:2: [warning] already initialized constant Foo::A

# Classes
class Foo
  A: Integer
end


## Version info:
##   * Ruby: 3.0.0
##   * RBS: 1.3.1
##   * TypeProf: 0.15.0

Start by reproducing the warning in the linked Ruby TypeProf Playground using the provided Ruby and RBS snippets. Compare the TypeProf 0.15.0 output with the expected behavior for a constant declared in both sources, then identify the relevant TypeProf entry point. Done means the matching example no longer emits the spurious already-initialized-constant warning.