[NI] Improve completing calls with multiple postponed arguments

#KT-27999 Fixed
#KT-30244 Fixed
#KT-31102 Fixed

compiler/testData/diagnostics/tests/inference/completionOfMultipleLambdas.fir.kt

@@ -0,0 +1,32 @@
+// !LANGUAGE: +NewInference
+// !DIAGNOSTICS: -UNUSED_PARAMETER -UNUSED_VARIABLE -UNUSED_ANONYMOUS_PARAMETER
+
+fun <K> select(x: K, y: K): K = x
+fun <K> select3(x: K, y: K, z: K): K = x
+
+interface A
+interface B
+
+fun test() {
+    select3(
+        { a: A, b: A -> Unit },
+        { b, a -> Unit },
+        { <!UNRESOLVED_REFERENCE!>it<!>; Unit }
+    )
+}
+
+// ISSUE: KT-27999
+// ISSUE: KT-30244
+fun test_1() {
+    select(
+        { 1 },
+        { "" }
+    )
+}
+
+// ISSUE: KT-31102
+fun bar(): Int = 1
+fun test_2(x: Int) {
+    val f1: () -> Int = select({ bar() }, ::bar) // TYPE_MISMATCH on lambda
+    val f2 = select({ bar() }, ::bar) // Same
+}