FIR: don't enhance synthetic property if not needed

compiler/testData/codegen/box/fir/CustomThrowableMessage.kt

@@ -0,0 +1,53 @@
+// TARGET_BACKEND: JVM_IR
+// WITH_RUNTIME
+
+// MODULE: m1
+// FILE: m1/ConfigurationException.java
+
+package m1;
+
+public class ConfigurationException extends Exception {
+    public ConfigurationException(String message) {
+        super(message);
+    }
+
+    public String getMessage() {
+        return super.getMessage();
+    }
+}
+
+// MODULE: m2(m1)
+// FILE: m2/RuntimeConfigurationException.java
+
+package m2;
+import m1.ConfigurationException;
+
+public class RuntimeConfigurationException extends ConfigurationException {
+    public RuntimeConfigurationException(String message) {
+        super(message);
+    }
+}
+
+// FILE: m2/RuntimeConfigurationError.java
+
+package m2;
+
+public class RuntimeConfigurationError extends RuntimeConfigurationException{
+    public RuntimeConfigurationError(String message) {
+        super(message);
+    }
+}
+
+// MODULE: m3(m2, m1)
+// FILE: m3.kt
+
+package m3
+import m2.RuntimeConfigurationError
+
+fun box(): String {
+    try {
+        throw RuntimeConfigurationError("OK")
+    } catch (e: RuntimeConfigurationError) {
+        return e.message!!
+    }
+}