[FIR] Remove usage of FirSamResolver in call conflict resolution

#KT-63703 Fixed

analysis/low-level-api-fir/tests/org/jetbrains/kotlin/analysis/low/level/api/fir/diagnostic/compiler/based/DiagnosticCompilerTestFE10TestdataTestGenerated.java

@@ -32470,6 +32470,12 @@ public class DiagnosticCompilerTestFE10TestdataTestGenerated extends AbstractDia
                 runTest("compiler/testData/diagnostics/tests/samConversions/kt60983.kt");
             }
 
+            @Test
+            @TestMetadata("multipleSamConversionConflictResolution.kt")
+            public void testMultipleSamConversionConflictResolution() throws Exception {
+                runTest("compiler/testData/diagnostics/tests/samConversions/multipleSamConversionConflictResolution.kt");
+            }
+
             @Test
             @TestMetadata("OverloadPriority.kt")
             public void testOverloadPriority() throws Exception {

analysis/low-level-api-fir/tests/org/jetbrains/kotlin/analysis/low/level/api/fir/diagnostic/compiler/based/LLFirPreresolvedReversedDiagnosticCompilerFE10TestDataTestGenerated.java

@@ -32470,6 +32470,12 @@ public class LLFirPreresolvedReversedDiagnosticCompilerFE10TestDataTestGenerated
                 runTest("compiler/testData/diagnostics/tests/samConversions/kt60983.kt");
             }
 
+            @Test
+            @TestMetadata("multipleSamConversionConflictResolution.kt")
+            public void testMultipleSamConversionConflictResolution() throws Exception {
+                runTest("compiler/testData/diagnostics/tests/samConversions/multipleSamConversionConflictResolution.kt");
+            }
+
             @Test
             @TestMetadata("OverloadPriority.kt")
             public void testOverloadPriority() throws Exception {

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

@@ -30304,6 +30304,12 @@ public class FirLightTreeOldFrontendDiagnosticsTestGenerated extends AbstractFir
                 runTest("compiler/testData/diagnostics/tests/samConversions/kt60983.kt");
             }
 
+            @Test
+            @TestMetadata("multipleSamConversionConflictResolution.kt")
+            public void testMultipleSamConversionConflictResolution() throws Exception {
+                runTest("compiler/testData/diagnostics/tests/samConversions/multipleSamConversionConflictResolution.kt");
+            }
+
             @Test
             @TestMetadata("OverloadPriority.kt")
             public void testOverloadPriority() throws Exception {

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

@@ -30316,6 +30316,12 @@ public class FirPsiOldFrontendDiagnosticsTestGenerated extends AbstractFirPsiDia
                 runTest("compiler/testData/diagnostics/tests/samConversions/kt60983.kt");
             }
 
+            @Test
+            @TestMetadata("multipleSamConversionConflictResolution.kt")
+            public void testMultipleSamConversionConflictResolution() throws Exception {
+                runTest("compiler/testData/diagnostics/tests/samConversions/multipleSamConversionConflictResolution.kt");
+            }
+
             @Test
             @TestMetadata("OverloadPriority.kt")
             public void testOverloadPriority() throws Exception {

compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/calls/AbstractConeCallConflictResolver.kt

@@ -8,8 +8,8 @@ package org.jetbrains.kotlin.fir.resolve.calls
 import org.jetbrains.kotlin.fir.FirSession
 import org.jetbrains.kotlin.fir.declarations.*
 import org.jetbrains.kotlin.fir.declarations.utils.isExpect
+import org.jetbrains.kotlin.fir.expressions.unwrapArgument
 import org.jetbrains.kotlin.fir.resolve.BodyResolveComponents
-import org.jetbrains.kotlin.fir.resolve.FirSamResolver
 import org.jetbrains.kotlin.fir.resolve.fullyExpandedType
 import org.jetbrains.kotlin.fir.resolve.inference.InferenceComponents
 import org.jetbrains.kotlin.fir.types.*
@@ -30,6 +30,7 @@ import org.jetbrains.kotlin.resolve.calls.results.*
 import org.jetbrains.kotlin.types.model.KotlinTypeMarker
 import org.jetbrains.kotlin.types.model.requireOrDescribe
 import org.jetbrains.kotlin.utils.addIfNotNull
+import org.jetbrains.kotlin.utils.addToStdlib.runIf
 import org.jetbrains.kotlin.utils.exceptions.errorWithAttachment
 
 abstract class AbstractConeCallConflictResolver(
@@ -39,8 +40,6 @@ abstract class AbstractConeCallConflictResolver(
     private val considerMissingArgumentsInSignatures: Boolean,
 ) : ConeCallConflictResolver() {
 
-    private val samResolver: FirSamResolver get() = transformerComponents.samResolver
-
     /**
      * Returns `true` if [call1] is definitely more or equally specific [call2],
      * `false` otherwise.
@@ -212,12 +211,18 @@ abstract class AbstractConeCallConflictResolver(
 
     private fun FirValueParameter.toTypeWithConversion(session: FirSession, call: Candidate): TypeWithConversion {
         val argumentType = argumentType().fullyExpandedType(session)
-        return if (!call.usesSAM) {
+        val functionTypeForSam = toFunctionTypeForSamOrNull(call)
+        return if (functionTypeForSam == null) {
             TypeWithConversion(argumentType)
         } else {
-            val functionType = samResolver.getFunctionTypeForPossibleSamType(argumentType)
+            TypeWithConversion(functionTypeForSam, argumentType)
-            if (functionType == null) TypeWithConversion(argumentType)
+        }
-            else TypeWithConversion(functionType, argumentType)
+    }
+
+    private fun FirValueParameter.toFunctionTypeForSamOrNull(call: Candidate): ConeKotlinType? {
+        val functionTypesOfSamConversions = call.functionTypesOfSamConversions ?: return null
+        return call.argumentMapping?.entries?.firstNotNullOfOrNull {
+            runIf(it.value == this) { functionTypesOfSamConversions[it.key.unwrapArgument()] }
         }
     }
 

compiler/testData/diagnostics/tests/samConversions/multipleSamConversionConflictResolution.kt

@@ -0,0 +1,11 @@
+// FIR_IDENTICAL
+fun interface Runnable {
+    fun run()
+}
+
+fun foo(r: Runnable, f: Runnable) = 1
+fun foo(r: Runnable, f: () -> Unit) = ""
+
+fun test(): String {
+    return foo(Runnable {}, {})
+}

compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/DiagnosticTestGenerated.java

@@ -32470,6 +32470,12 @@ public class DiagnosticTestGenerated extends AbstractDiagnosticTest {
                 runTest("compiler/testData/diagnostics/tests/samConversions/kt60983.kt");
             }
 
+            @Test
+            @TestMetadata("multipleSamConversionConflictResolution.kt")
+            public void testMultipleSamConversionConflictResolution() throws Exception {
+                runTest("compiler/testData/diagnostics/tests/samConversions/multipleSamConversionConflictResolution.kt");
+            }
+
             @Test
             @TestMetadata("OverloadPriority.kt")
             public void testOverloadPriority() throws Exception {