[NI] Prefer between two complex variables one with proper lower bounds

This reverts commit d4d35bb766.

compiler/testData/diagnostics/tests/inference/nothingType/inferenceWithRecursiveGenericsAndNothing.kt

@@ -0,0 +1,16 @@
+// FIR_IDENTICAL
+// !DIAGNOSTICS: -UNUSED_PARAMETER
+
+interface Out<out T>
+interface In<in T>
+interface Recursive<T : In<T>>
+
+interface Specialized : In<Specialized>
+
+class Parent : Specialized
+
+fun <T : In<T>> foo(o: Out<T>): Recursive<T>? = null
+
+fun test(o: Out<Parent>) {
+    foo(o) ?: return
+}

compiler/testData/diagnostics/tests/inference/nothingType/inferenceWithRecursiveGenericsAndNothing.txt

@@ -0,0 +1,35 @@
+package
+
+public fun </*0*/ T : In<T>> foo(/*0*/ o: Out<T>): Recursive<T>?
+public fun test(/*0*/ o: Out<Parent>): kotlin.Unit
+
+public interface In</*0*/ in T> {
+    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 Out</*0*/ out T> {
+    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 final class Parent : Specialized {
+    public constructor Parent()
+    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 Recursive</*0*/ T : In<T>> {
+    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 Specialized : In<Specialized> {
+    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
+}

compiler/testData/diagnostics/testsWithStdLib/regression/kt37554.kt

@@ -0,0 +1,20 @@
+// FIR_IDENTICAL
+// FULL_JDK
+
+import java.time.LocalDate
+
+data class DailyTime(val date: LocalDate)
+
+fun <T : Comparable<T>> Sequence<T>.range(): ClosedRange<T>? {
+    val iter = iterator()
+    return when {
+        iter.hasNext() -> iter.next().let { it..it }
+        else -> null
+    }
+}
+
+fun test(dailyTimes: List<DailyTime>): List<DailyTime> {
+    val dateRange = dailyTimes.asSequence().map { it.date }.range() ?: return emptyList()
+    println(dateRange.start)
+    return dailyTimes
+}

compiler/testData/diagnostics/testsWithStdLib/regression/kt37554.txt

@@ -0,0 +1,14 @@
+package
+
+public fun test(/*0*/ dailyTimes: kotlin.collections.List<DailyTime>): kotlin.collections.List<DailyTime>
+public fun </*0*/ T : kotlin.Comparable<T>> kotlin.sequences.Sequence<T>.range(): kotlin.ranges.ClosedRange<T>?
+
+public final data class DailyTime {
+    public constructor DailyTime(/*0*/ date: java.time.LocalDate)
+    public final val date: java.time.LocalDate
+    public final operator /*synthesized*/ fun component1(): java.time.LocalDate
+    public final /*synthesized*/ fun copy(/*0*/ date: java.time.LocalDate = ...): DailyTime
+    public open override /*1*/ /*synthesized*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*synthesized*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*synthesized*/ fun toString(): kotlin.String
+}