Indentation parsing of `if` can fail when overlapped in brackets

[soronpo]

Compiler version

v3.6.3

Minimized code

@main def main = 
  val y = (
    if (true)
      val x = 1 //error
      5
    else 7 
  )

Output

expression expected but val found

Expectation

No error.

[som-snytt]

After the "old-style conditional", the parser will correctly "observe indented" region.

However, in enclosing parens, NEWLINE is not normally inferred, so it is too late to see the indent. Scanner will have advanced to the val.