Bug Report

🕗 Version & Regression Information

ts stable & nightly

⏯ Playground Link

Playground Link

💻 Code

export class Foo {}

<img width="415" alt="Code_2021-08-01_08-43-51" src="https://user-images.githubuser

According to documentation https://lesscss.org/functions/#color-definition-hsl
hsl() function should output a color, but it does not. rgb() and hsv() behave as documented.

$ npx lessc --version
lessc 4.1.1 (Less Compiler) [JavaScript]
$ cat problem.less 
.problem {
  color: rgb(128, 255, 0);
  background-color: hsl(90, 100%, 50%);
  border-color: hsv(90, 100%, 50%);
}
$ npx lessc pr

### Example
let unreachableProxy = "http://127.0.0.1:8888"
try:
  let client = newHttpClient(proxy=newProxy(unreachableProxy), timeout=1)
  var res = client.getContent("https://github.com")
  echo res
except:
  echo "Timed out"

Current Output

timeout variable is ignored, program stuck until default socket timeout will happen

Expected Output

Timed out a

Related to #10295 and #11731.

Currently there are lots of independent try/catch statements inside various functions of CommandLineInterface. In most (if not all) cases they just print the error message and exit. In some cases this results in exceptions being silenced too eagerly, in others exceptions are not caught at all and can terminate the application without a sensible error message.

It would be useful to have a java.util.BitSet implementation. It looks like most Java collections are available but this one fell through the cracks (perhaps because it's not part of the Collection hierarchy).