Do not use currentColumn to indent comments when retainLines=true

[ian-craig]

Q	A
Fixed Issues?	Fixes #12259
Patch: Bug Fix?	Yes
Major: Breaking Change?	No
Minor: New Feature?	No
Tests Added + Pass?	Yes
Documentation PR Link	N/A?
Any Dependency Changes?	No
License	MIT

When babel prints block comments it adds a newline before the comment, then aligns the comment to the current column position. However, with retainLines == true, this.newline() is a noop and the "current" column position when printing the comment is the end of the previous line.

Looks like this additional alignment check isn't supported with retainLines, so I'm just disabling it.

Added the input sample from #12259 as a unit test to confirm it was failing and is now fixed.

[babel-bot]

Build successful! You can test your changes in the REPL here: https://babeljs.io/repl/build/31138/

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[nicolo-ribaudo]

Thanks for the PR!

What happens for this input code? (the comment is indented)

{
  const foo = "this is a really long line of text. this is a really long line of text.";

  /**
   * Example
   */
  class A { }
}

[ian-craig]

Before this PR, output is

{
  const foo = "this is a really long line of text. this is a really long line of text.";

  /**
                                                                                          * Example
                                                                                          */
  class A {}
}

After this PR, output === unput