compiler/testData/repl/multiline/multilineFunctionInvocation.repl

>>> fun concat(a: String, b: String, c: String, d: String) = "$a$b$c$d"
>>> concat(
...     "hel",
...     "lo"
...     ,
...     "wo" +
...     "r", "l" +
...     "d"
... )
helloworld