[Compiler]: Extend Function outlining to object methods

[SimenB]

What kind of issue is this?

• React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
• babel-plugin-react-compiler (build issue installing or using the Babel plugin)
• eslint-plugin-react-compiler (build issue installing or using the eslint plugin)
• react-compiler-healthcheck (build issue installing or using the healthcheck script)

Link to repro

https://playground.react.dev/#N4Igzg9grgTgxgUxALhAgHgBwjALgAgDMoA7OXASwhPyjAQBUALCkgcwAoBKfYAHRq16AZQgBbBAAkIEANYd+g-Pgm4mEACYBGbrwHKD+GAlywahAIYAbegG59BgL4AaB8tXqNAJmT5dAXgA+PSUDY1MYc2s7N3wXWI9NAGZfYjJKaj8eRUNlcLMiaIR7UPjQxI0AFlTScioaCsqskNyjEwLLG2LYsuVHLhLHEEcgA

Repro steps

    method() {
      return false;
    },

is not hoisted, while

    method: () => {
      return false;
    },

is correctly hoisted.

Seems to be related to the fact the function is named?

This may or may not be the same as #31180?

How often does this bug happen?

Every time

What version of React are you using?

N/A

What version of React Compiler are you using?

19.0.0-beta-63e3235-20250105

[josephsavona]

Thanks. This isn't a bug per-se, we intentionally limited the optimization to function expressions and not object methods. But it is likely safe to extend the optimization. Note that this is unrelated to #31180