Vscode-intelephense: Expected type 'int'. Found 'numeric'.intelephense(10006)

[damixxx]

...

public static function test(int $param1, int $param2) : int
{
    return ($param1 + $param2);
}

Returned type int is underlined with the message:
Expected type 'int'. Found 'numeric'.intelephense(10006)

[jakubjo]

I've a simillar issue:

"Expected Type Closure. Found callable|Function" #10006

Had also issues with a return type of self which is gone now, but I don't really know why.

class A {
  public function foo() : self
  {
    return new self();
  }
}

self was underlined in red and the error message was something like the following:

Expected type A found self

[martinbean]

@damixxx @jakubjo I can report I’ve encountered both of these scenarios in the last 24 hours too.