Error in rhs of identifier leads to spurious errors later on

[smarter]

This code should print one error but prints two:

object Test {
  def test: Unit = {
    val x = iDontExist(32) // error: not found: iDontExist
    val y = x
    x + x
    println(x)
  }
}

-- [E006] Unbound Identifier Error: try/nometh.scala:3:12 ----------------------
3 |    val x = iDontExist(32)
  |            ^^^^^^^^^^
  |            not found: iDontExist

longer explanation available when compiling with `-explain`
-- [E006] Unbound Identifier Error: try/nometh.scala:6:12 ----------------------
6 |    println(x)
  |            ^
  |            not found: iDontExist

longer explanation available when compiling with `-explain`

two errors found

Compare with the output you get with scalac:

try/nometh.scala:3: error: not found: value iDontExist
    val x = iDontExist(32)
            ^
one error found

This is somewhat similar to #2412

[smarter]

Fixed but I don't know when.

[allanrenucci]

Should be added as a regression test