JVM_IR: omit bound receiver in IrExpressionLambdaImpl parameters

and remove a hack intended to replace the missing type conversions this
caused.

 #KT-46505 Fixed

compiler/tests-gen/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java

@@ -15747,6 +15747,11 @@ public class LightAnalysisModeTestGenerated extends AbstractLightAnalysisModeTes
                     runTest("compiler/testData/codegen/box/inlineClasses/callableReferences/let/intN.kt");
                 }
 
+                @TestMetadata("null.kt")
+                public void testNull() throws Exception {
+                    runTest("compiler/testData/codegen/box/inlineClasses/callableReferences/let/null.kt");
+                }
+
                 @TestMetadata("result.kt")
                 public void testResult() throws Exception {
                     runTest("compiler/testData/codegen/box/inlineClasses/callableReferences/let/result.kt");