JVM_IR KT-48433 don't generate null check on 'this$0' parameter

compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/ExpressionCodegen.kt

@@ -328,6 +328,7 @@ class ExpressionCodegen(
                 irFunction.origin == IrDeclarationOrigin.LOCAL_FUNCTION_FOR_LAMBDA
 
     private fun generateNonNullAssertion(param: IrValueParameter) {
+        if (param.origin == JvmLoweredDeclarationOrigin.FIELD_FOR_OUTER_THIS) return
         val asmType = param.type.asmType
         if (!param.type.unboxInlineClass().isNullable() && !isPrimitive(asmType)) {
             mv.load(findLocalIndex(param.symbol), asmType)