Fix JSX V4 build error when component props have the default value with same name

[mununki]

Fixes #6374 #6375

• build error when the prop has default value with same name

module C2 = {
  let a = "foo"
  @react.component
  let make = (~a=a) => React.string(a) // build error
}

• build error when prop has default value and type annotation

module C3 = {
  @react.component
  let make = (~disabled as everythingDisabled: bool=false) => {
    React.string(everythingDisabled ? "true" : "false")
  }
}

[cristianoc]

@DZakh does this work for you?

@mununki would you do __foo instead of foo__

[mununki]

@mununki would you do __foo instead of foo__

Sure, f8e7e70

[DZakh]

Yep, looks good. Thanks for a quick fix 🫶

[cristianoc]

Merge away