REPL syntax error on incomplete catch

[som-snytt]

Compiler version

Scala 3.1.2-RC1-bin-SNAPSHOT

Minimized code

scala> def f[A](x: => Any) =
     |   try x
     |   catch {
-- [E040] Syntax Error: -------------------------------------------------------------------------------------------------------------------------
3 |  catch {
  |         ^
  |         '}' expected, but eof found

scala> try 42 catch {
-- [E040] Syntax Error: -------------------------------------------------------------------------------------------------------------------------
1 |try 42 catch {
  |              ^
  |              '}' expected, but eof found

Output

Errored instead of consuming more user input.

Expectation

Open brace is an easy signal that output is incomplete.

[som-snytt]

Duplicates #4393