[feature] Concat constants

[bagipro]

Describe your idea:
Sometimes I see code such as

String value = "1" + "2";

Is that possible to implement a flag (or do it by default) to merge such constants? So after decompilation it would be

String value = "12";

[skylot]

@bagipro sure this can be implemented.
But, did you know the reason why this happens? I mean, java compiler always concat constant strings, so this will not occur in normal java building pipeline. Did you see such cases in any open source projects, so I can trace the cause of the issue.

[bagipro]

@skylot
Probably because it's concatenated from different final fields, so the compiler replaces field references with their values, but doesn't concatenate. I will find such examples

[bagipro]

@skylot
APK: https://drive.google.com/file/d/1scyr_jQjtDN5ICSfExkbTRzTew_0n0Nw/view?usp=sharing

Class com.dsi.ant.channel.EventBufferSettings

    public java.lang.String toString() {
        return "Event Buffer Settings:" + " -Buffer Time: " + this.mBufferTimeMilliseconds + "ms";
    }

And with int, class com.dsi.ant.channel.EventBufferSettings

                android.util.Log.i(str, "Decoding version " + readInt2 + " AntContinuousScanController parcel with version " + 1 + " parser.");

[skylot]

Done.
@bagipro thanks for samples.

[bagipro]

@skylot
Thanks!