PSI2IR: do not generate when subjects multiple times

`in x` is represented as `<subject expression> in x` in psi, so
generating the entire call and then replacing the argument with a read
of a temporary results in redundant regenerations of the subject.

 #KT-42054 Fixed
 #KT-42455 Fixed

compiler/testData/codegen/box/controlStructures/kt42455.kt

@@ -0,0 +1,9 @@
+// WITH_RUNTIME
+// KJS_WITH_FULL_RUNTIME
+fun box(): String {
+    val xs = listOf(1, 2, 3)
+    return when (xs.first { it > 1 }) {
+        in xs -> "OK"
+        else -> "fail"
+    }
+}