[K/N] Fix work with adapted function references

Their parsing was totally incorrect for K2, and sometimes incorrect for
K1. After this commit it uses same code as for JVM.

^KT-55462

compiler/fir/fir2ir/tests-gen/org/jetbrains/kotlin/test/runners/codegen/FirBlackBoxCodegenTestGenerated.java

@@ -3826,6 +3826,12 @@ public class FirBlackBoxCodegenTestGenerated extends AbstractFirBlackBoxCodegenT
                 runTest("compiler/testData/codegen/box/callableReference/equality/coercionToUnitWithVararg.kt");
             }
 
+            @Test
+            @TestMetadata("conversionCombinations.kt")
+            public void testConversionCombinations() throws Exception {
+                runTest("compiler/testData/codegen/box/callableReference/equality/conversionCombinations.kt");
+            }
+
             @Test
             @TestMetadata("extensionReceiverVsDefault.kt")
             public void testExtensionReceiverVsDefault() throws Exception {