[NI] Prioritize type variables related to output type for fixation

compiler/testData/diagnostics/tests/inference/constraints/operationsOnIntegerValueTypes.kt

@@ -0,0 +1,9 @@
+// !DIAGNOSTICS: -UNUSED_PARAMETER
+
+fun test() {
+    generateException(Data(1), { Data(it.x + 2) })
+}
+
+fun <T> generateException(a: T, next: (T) -> T) {}
+
+class Data<out K>(val x: K)

compiler/testData/diagnostics/tests/inference/constraints/operationsOnIntegerValueTypes.txt

@@ -0,0 +1,12 @@
+package
+
+public fun </*0*/ T> generateException(/*0*/ a: T, /*1*/ next: (T) -> T): kotlin.Unit
+public fun test(): kotlin.Unit
+
+public final class Data</*0*/ out K> {
+    public constructor Data</*0*/ out K>(/*0*/ x: K)
+    public final val x: K
+    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
+}