[NI] Improve completing callable references with type variable as expected type

#KT-32462 Fixed

compiler/testData/diagnostics/tests/inference/kt32462.fir.kt

@@ -0,0 +1,27 @@
+// !LANGUAGE: +NewInference
+// !DIAGNOSTICS: -UNUSED_PARAMETER
+// ISSUE: KT-32462
+
+fun <K> select(x: K, y: K): K = x
+
+interface A {
+    fun toB(): B
+    fun toC(): C
+    fun toC(x: Int): C
+}
+interface B
+interface C
+
+fun test_1() {
+    select(
+        { a: A -> a.toB() },
+        { a: A -> a.toC() }
+    )
+}
+
+fun test_2() {
+    select(
+        A::toB,
+        <!UNRESOLVED_REFERENCE!>A::toC<!>
+    )
+}

compiler/testData/diagnostics/tests/inference/kt32462.kt

@@ -0,0 +1,27 @@
+// !LANGUAGE: +NewInference
+// !DIAGNOSTICS: -UNUSED_PARAMETER
+// ISSUE: KT-32462
+
+fun <K> select(x: K, y: K): K = x
+
+interface A {
+    fun toB(): B
+    fun toC(): C
+    fun toC(x: Int): C
+}
+interface B
+interface C
+
+fun test_1() {
+    <!DEBUG_INFO_EXPRESSION_TYPE("(A) -> kotlin.Any")!>select(
+        { a: A -> a.toB() },
+        { a: A -> a.toC() }
+    )<!>
+}
+
+fun test_2() {
+    <!DEBUG_INFO_EXPRESSION_TYPE("kotlin.reflect.KFunction1<A, kotlin.Any>")!>select(
+        A::toB,
+        A::toC
+    )<!>
+}

compiler/testData/diagnostics/tests/inference/kt32462.txt

@@ -0,0 +1,26 @@
+package
+
+public fun </*0*/ K> select(/*0*/ x: K, /*1*/ y: K): K
+public fun test_1(): kotlin.Unit
+public fun test_2(): kotlin.Unit
+
+public interface A {
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public abstract fun toB(): B
+    public abstract fun toC(): C
+    public abstract fun toC(/*0*/ x: kotlin.Int): C
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public interface B {
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public interface C {
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}