K2: reproduce KT-56614

analysis/low-level-api-fir/tests/org/jetbrains/kotlin/analysis/low/level/api/fir/diagnostic/compiler/based/DiagnosticCompilerTestFirTestdataTestGenerated.java

@@ -4251,6 +4251,12 @@ public class DiagnosticCompilerTestFirTestdataTestGenerated extends AbstractDiag
                 runTest("compiler/fir/analysis-tests/testData/resolve/samConversions/samSupertypeWithOverride.kt");
             }
 
+            @Test
+            @TestMetadata("samVsLambda.kt")
+            public void testSamVsLambda() throws Exception {
+                runTest("compiler/fir/analysis-tests/testData/resolve/samConversions/samVsLambda.kt");
+            }
+
             @Test
             @TestMetadata("samWithEquals.kt")
             public void testSamWithEquals() throws Exception {

analysis/low-level-api-fir/tests/org/jetbrains/kotlin/analysis/low/level/api/fir/diagnostic/compiler/based/LLFirPreresolvedReversedDiagnosticCompilerFirTestDataTestGenerated.java

@@ -4251,6 +4251,12 @@ public class LLFirPreresolvedReversedDiagnosticCompilerFirTestDataTestGenerated
                 runTest("compiler/fir/analysis-tests/testData/resolve/samConversions/samSupertypeWithOverride.kt");
             }
 
+            @Test
+            @TestMetadata("samVsLambda.kt")
+            public void testSamVsLambda() throws Exception {
+                runTest("compiler/fir/analysis-tests/testData/resolve/samConversions/samVsLambda.kt");
+            }
+
             @Test
             @TestMetadata("samWithEquals.kt")
             public void testSamWithEquals() throws Exception {

compiler/fir/analysis-tests/testData/resolve/samConversions/samVsLambda.fir.txt

@@ -0,0 +1,21 @@
+FILE: package1.kt
+    package p1
+
+    public abstract fun interface SamUnit : R|kotlin/Any| {
+        public abstract fun foo(): R|kotlin/Unit|
+
+    }
+    public final fun bar(x: R|kotlin/String|, y: R|kotlin/String|, z: R|p1/SamUnit|): R|kotlin/Unit| {
+    }
+FILE: package2.kt
+    package p2
+
+    public final fun bar(x: R|kotlin/Any|, y: R|kotlin/Any|, z: R|() -> kotlin/Unit|): R|kotlin/Unit| {
+    }
+FILE: main.kt
+    public final fun main(): R|kotlin/Unit| {
+        R|p2/bar|(String(), String(), <L> = bar@fun <anonymous>(): R|kotlin/Unit| <inline=NoInline>  {
+            ^@bar Unit
+        }
+        )
+    }

compiler/fir/analysis-tests/testData/resolve/samConversions/samVsLambda.kt

@@ -0,0 +1,28 @@
+// ISSUE: KT-56614
+
+// FILE: package1.kt
+
+package p1
+
+fun interface SamUnit {
+    fun foo()
+}
+
+fun bar(x: String, y: String, z: SamUnit) {
+}
+
+// FILE: package2.kt
+
+package p2
+
+fun bar(x: Any, y: Any, z: () -> Unit) {
+}
+
+// FILE: main.kt
+
+import p1.*
+import p2.*
+
+fun main() {
+    bar("", "") {} // Resolves to p1.bar in K1, but to p2.bar in K2
+}

compiler/fir/analysis-tests/tests-gen/org/jetbrains/kotlin/test/runners/FirLightTreeDiagnosticsTestGenerated.java

@@ -4251,6 +4251,12 @@ public class FirLightTreeDiagnosticsTestGenerated extends AbstractFirLightTreeDi
                 runTest("compiler/fir/analysis-tests/testData/resolve/samConversions/samSupertypeWithOverride.kt");
             }
 
+            @Test
+            @TestMetadata("samVsLambda.kt")
+            public void testSamVsLambda() throws Exception {
+                runTest("compiler/fir/analysis-tests/testData/resolve/samConversions/samVsLambda.kt");
+            }
+
             @Test
             @TestMetadata("samWithEquals.kt")
             public void testSamWithEquals() throws Exception {

compiler/fir/analysis-tests/tests-gen/org/jetbrains/kotlin/test/runners/FirPsiDiagnosticTestGenerated.java

@@ -4251,6 +4251,12 @@ public class FirPsiDiagnosticTestGenerated extends AbstractFirPsiDiagnosticTest
                 runTest("compiler/fir/analysis-tests/testData/resolve/samConversions/samSupertypeWithOverride.kt");
             }
 
+            @Test
+            @TestMetadata("samVsLambda.kt")
+            public void testSamVsLambda() throws Exception {
+                runTest("compiler/fir/analysis-tests/testData/resolve/samConversions/samVsLambda.kt");
+            }
+
             @Test
             @TestMetadata("samWithEquals.kt")
             public void testSamWithEquals() throws Exception {