Named color parsing regression in 2.6.0

[qkevinto]

.makeButton(@padding, @background) {
  padding: @padding;
  background: @background;
}

.button {
  .makeButton(
    @padding: 5px, /* Comment */
    @background: black /* Comment */
  );
}

The line 9, @background: black /* Comment */ will error with: expected ')' got '/'

However these are fine:

.button {
  .makeButton(
    @padding: 5px, /* Comment */
    @background: black); /* Comment */
}

.button {
  .makeButton(
    @padding: 5px, /* Comment */
    @background: black
  );
}

.button {
  .makeButton(
    @background: black, /* Comment */
    @padding: 5px /* Comment */
  );
}

This is using less.js 2.6.0 on node 4.2.6.

[diagramatics]

Could this be related to #2798?

[seven-phases-max]

Could this be related to #2798?

No. It's a regression in #2775.

[seven-phases-max]

Minimal example to reproduce:

x {
    x: red /* comment */;  
}

It seems to affect only comments after named colors, but other side-effects are possible too.

[diagramatics]

Explains why we tested with random text and it doesn't produce this issue.

Regardless thanks for fixing this. Looking forward to the new version once you guys are ready to publish one 👍