Error parsing interpolated value

[stowball]

The following code breaks in LibSass 3.2.5 with error parsing interpolated value on line 5 at column 32:

$ease-in-cubic: cubic-bezier(0.550, 0.055, 0.675, 0.190);
$transition: 0.2s #{$ease-in-cubic};

.foo {
  transition: background-color #{$transition}, box-shadow #{$transition};
}

It used to work in 3.2.2 and works in Ruby Sass 3.4.14.

If you wrap the first #{$transition} in an (), then it works:

$ease-in-cubic: cubic-bezier(0.550, 0.055, 0.675, 0.190);
$transition: 0.2s #{$ease-in-cubic};

.foo {
  transition: background-color (#{$transition}), box-shadow #{$transition};
}

[mgreter]

This will be fixed once the parser refactoring is merged!

[xzyfer]

Specs added sass/sass-spec#416

[mgreter]

We now have a passing spec test since #1249 was merged 🎈