[core] Use of registers in enum constant declaration argument

[bagipro]

Hi, I've noticed an error

package com.google.zxing;

public enum DecodeHintType {
    OTHER(java.lang.Object.class),
    PURE_BARCODE(java.lang.Void.class),
    POSSIBLE_FORMATS(java.util.List.class),
    TRY_HARDER(java.lang.Void.class),
    CHARACTER_SET(java.lang.String.class),
    ALLOWED_LENGTHS(r0), // <<<
    ASSUME_CODE_39_CHECK_DIGIT(java.lang.Void.class),
    ASSUME_GS1(java.lang.Void.class),
    RETURN_CODABAR_START_END(java.lang.Void.class),
    NEED_RESULT_POINT_CALLBACK(com.google.zxing.ResultPointCallback.class),
    ALLOWED_EAN_EXTENSIONS(r0); // <<<
    
    private final java.lang.Class<?> valueType;

    static {
        java.lang.Class<int[]> cls = int[].class; // weird useless declaration
    }

    private DecodeHintType(java.lang.Class<?> cls) {
        this.valueType = cls;
    }

    public java.lang.Class<?> getValueType() {
        return this.valueType;
    }
}

APK: https://drive.google.com/file/d/1ICfL4A22K-KhVkw5RwvWdLJA8111iYvG/view?usp=sharing

[skylot]

@sergey-wowwow fixed exactly this case. For other possible cases, comment with a warning will be printed.

[bagipro]

Thanks, will check it to find other possible errors