[NI] Look for type variables in captured flexible types

#KT-32434 Fixed

compiler/fir/resolve/tests/org/jetbrains/kotlin/fir/FirDiagnosticsSmokeTestGenerated.java

@@ -9711,6 +9711,11 @@ public class FirDiagnosticsSmokeTestGenerated extends AbstractFirDiagnosticsSmok
             runTest("compiler/testData/diagnostics/tests/inference/kt3184.kt");
         }
 
+        @TestMetadata("kt32434.kt")
+        public void testKt32434() throws Exception {
+            runTest("compiler/testData/diagnostics/tests/inference/kt32434.kt");
+        }
+
         @TestMetadata("kt6175.kt")
         public void testKt6175() throws Exception {
             runTest("compiler/testData/diagnostics/tests/inference/kt6175.kt");

compiler/resolution/src/org/jetbrains/kotlin/resolve/calls/inference/components/AbstractTypeCheckerContextForConstraintSystem.kt

@@ -90,7 +90,7 @@ abstract class AbstractTypeCheckerContextForConstraintSystem : AbstractTypeCheck
         val projection = typeMarker.typeConstructorProjection()
         if (projection.isStarProjection()) return null
         if (projection.getVariance() == TypeVariance.IN) {
-            val type = projection.getType().asSimpleType() ?: return null
+            val type = projection.getType().let { it.asSimpleType() ?: it.asFlexibleType()?.lowerBound() } ?: return null
             if (isMyTypeVariable(type)) {
                 simplifyLowerConstraint(type, superType)
                 if (isMyTypeVariable(superType.asSimpleType() ?: return null)) {
@@ -100,10 +100,14 @@ abstract class AbstractTypeCheckerContextForConstraintSystem : AbstractTypeCheck
             return null
         }
 
-        return if (projection.getVariance() == TypeVariance.OUT)
-            projection.getType().takeIf { it is SimpleTypeMarker && isMyTypeVariable(it) }?.asSimpleType()
-        else
-            null
+        return if (projection.getVariance() == TypeVariance.OUT) {
+            val type = projection.getType()
+            when {
+                type is SimpleTypeMarker && isMyTypeVariable(type) -> type.asSimpleType()
+                type is FlexibleTypeMarker && isMyTypeVariable(type.lowerBound()) -> type.asFlexibleType()?.lowerBound()
+                else -> null
+            }
+        } else null
     }
 
     /**

compiler/testData/diagnostics/tests/inference/kt32434.kt

@@ -0,0 +1,32 @@
+// FULL_JDK
+// !WITH_NEW_INFERENCE
+// !DIAGNOSTICS: -UNUSED_PARAMETER
+// Issue: KT-32434
+
+// FILE: CacheMonoJava.java
+
+public class CacheMonoJava {
+    public static <K, V> Mono<V> lookup(java.util.Map<K, ? super Signal<? extends V>> map, K key) {
+        throw new UnsupportedOperationException();
+    }
+}
+
+// FILE: main.kt
+
+interface Cache<K, V> {
+    fun asMap(): MutableMap<K, V>
+}
+
+interface Mono<E>
+interface Signal<E> : Mono<E>
+
+interface AttributeDefinition
+
+val cache: Cache<String, Signal<out AttributeDefinition>> = TODO()
+
+object CacheMonoKotlin {
+    fun <K, V> lookup(map: MutableMap<K, in Signal<out V>>, key: K): Mono<V> = TODO()
+}
+
+fun findByName_java(name: String): Mono<AttributeDefinition> = CacheMonoJava.lookup(cache.asMap(), name)
+fun findByName_kotlin(name: String): Mono<AttributeDefinition> = CacheMonoKotlin.lookup(cache.asMap(), name)

compiler/testData/diagnostics/tests/inference/kt32434.txt

@@ -0,0 +1,48 @@
+package
+
+public val cache: Cache<kotlin.String, Signal<out AttributeDefinition>>
+public fun findByName_java(/*0*/ name: kotlin.String): Mono<AttributeDefinition>
+public fun findByName_kotlin(/*0*/ name: kotlin.String): Mono<AttributeDefinition>
+
+public interface AttributeDefinition {
+    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 Cache</*0*/ K, /*1*/ V> {
+    public abstract fun asMap(): kotlin.collections.MutableMap<K, V>
+    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 open class CacheMonoJava {
+    public constructor CacheMonoJava()
+    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
+
+    // Static members
+    public open fun </*0*/ K : kotlin.Any!, /*1*/ V : kotlin.Any!> lookup(/*0*/ map: kotlin.collections.MutableMap<K!, in Signal<out V!>!>!, /*1*/ key: K!): Mono<V!>!
+}
+
+public object CacheMonoKotlin {
+    private constructor CacheMonoKotlin()
+    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 final fun </*0*/ K, /*1*/ V> lookup(/*0*/ map: kotlin.collections.MutableMap<K, in Signal<out V>>, /*1*/ key: K): Mono<V>
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public interface Mono</*0*/ E> {
+    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 Signal</*0*/ E> : Mono<E> {
+    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/tests/org/jetbrains/kotlin/checkers/DiagnosticsTestGenerated.java

@@ -9718,6 +9718,11 @@ public class DiagnosticsTestGenerated extends AbstractDiagnosticsTest {
                 runTest("compiler/testData/diagnostics/tests/inference/kt3184.kt");
             }
 
+            @TestMetadata("kt32434.kt")
+            public void testKt32434() throws Exception {
+                runTest("compiler/testData/diagnostics/tests/inference/kt32434.kt");
+            }
+
             @TestMetadata("kt6175.kt")
             public void testKt6175() throws Exception {
                 runTest("compiler/testData/diagnostics/tests/inference/kt6175.kt");

compiler/tests/org/jetbrains/kotlin/checkers/javac/DiagnosticsUsingJavacTestGenerated.java

@@ -9713,6 +9713,11 @@ public class DiagnosticsUsingJavacTestGenerated extends AbstractDiagnosticsUsing
                 runTest("compiler/testData/diagnostics/tests/inference/kt3184.kt");
             }
 
+            @TestMetadata("kt32434.kt")
+            public void testKt32434() throws Exception {
+                runTest("compiler/testData/diagnostics/tests/inference/kt32434.kt");
+            }
+
             @TestMetadata("kt6175.kt")
             public void testKt6175() throws Exception {
                 runTest("compiler/testData/diagnostics/tests/inference/kt6175.kt");