Support plugin intrinsics for serializer() function in K2.

- Add IrPluginContext to JvmBackendContext, so plugin intrinsics can
reference external functions properly.

- Do not use module.findClassAcrossModuleDependencies as Descriptor API does not work for FIR.

- Add asm listing tests in serialization plugin for K2

- Remove Delegated.kt asm listing test as we have similar test in boxIr group.

#KT-56553 Fixed

plugins/kotlinx-serialization/tests-gen/org/jetbrains/kotlinx/serialization/runners/SerializationAsmLikeInstructionsListingTestGenerated.java

@@ -31,12 +31,6 @@ public class SerializationAsmLikeInstructionsListingTestGenerated extends Abstra
         runTest("plugins/kotlinx-serialization/testData/codegen/Basic.kt");
     }
 
-    @Test
-    @TestMetadata("Delegated.kt")
-    public void testDelegated() throws Exception {
-        runTest("plugins/kotlinx-serialization/testData/codegen/Delegated.kt");
-    }
-
     @Test
     @TestMetadata("Intrinsics.kt")
     public void testIntrinsics() throws Exception {

plugins/kotlinx-serialization/tests-gen/org/jetbrains/kotlinx/serialization/runners/SerializationFir2IrAsmLikeInstructionsListingTestGenerated.java

@@ -0,0 +1,51 @@
+/*
+ * Copyright 2010-2023 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlinx.serialization.runners;
+
+import com.intellij.testFramework.TestDataPath;
+import org.jetbrains.kotlin.test.util.KtTestUtil;
+import org.jetbrains.kotlin.test.TargetBackend;
+import org.jetbrains.kotlin.test.TestMetadata;
+import org.junit.jupiter.api.Nested;
+import org.junit.jupiter.api.Test;
+
+import java.io.File;
+import java.util.regex.Pattern;
+
+/** This class is generated by {@link org.jetbrains.kotlinx.serialization.TestGeneratorKt}. DO NOT MODIFY MANUALLY */
+@SuppressWarnings("all")
+@TestMetadata("plugins/kotlinx-serialization/testData/codegen")
+@TestDataPath("$PROJECT_ROOT")
+public class SerializationFir2IrAsmLikeInstructionsListingTestGenerated extends AbstractSerializationFir2IrAsmLikeInstructionsListingTest {
+    @Test
+    public void testAllFilesPresentInCodegen() throws Exception {
+        KtTestUtil.assertAllTestsPresentByMetadataWithExcluded(this.getClass(), new File("plugins/kotlinx-serialization/testData/codegen"), Pattern.compile("^(.+)\\.kt$"), null, TargetBackend.JVM_IR, true);
+    }
+
+    @Test
+    @TestMetadata("Basic.kt")
+    public void testBasic() throws Exception {
+        runTest("plugins/kotlinx-serialization/testData/codegen/Basic.kt");
+    }
+
+    @Test
+    @TestMetadata("Intrinsics.kt")
+    public void testIntrinsics() throws Exception {
+        runTest("plugins/kotlinx-serialization/testData/codegen/Intrinsics.kt");
+    }
+
+    @Test
+    @TestMetadata("IntrinsicsAdvanced.kt")
+    public void testIntrinsicsAdvanced() throws Exception {
+        runTest("plugins/kotlinx-serialization/testData/codegen/IntrinsicsAdvanced.kt");
+    }
+
+    @Test
+    @TestMetadata("Sealed.kt")
+    public void testSealed() throws Exception {
+        runTest("plugins/kotlinx-serialization/testData/codegen/Sealed.kt");
+    }
+}

plugins/kotlinx-serialization/tests-gen/org/jetbrains/kotlinx/serialization/runners/SerializationIrAsmLikeInstructionsListingTestGenerated.java

@@ -31,12 +31,6 @@ public class SerializationIrAsmLikeInstructionsListingTestGenerated extends Abst
         runTest("plugins/kotlinx-serialization/testData/codegen/Basic.kt");
     }
 
-    @Test
-    @TestMetadata("Delegated.kt")
-    public void testDelegated() throws Exception {
-        runTest("plugins/kotlinx-serialization/testData/codegen/Delegated.kt");
-    }
-
     @Test
     @TestMetadata("Intrinsics.kt")
     public void testIntrinsics() throws Exception {