public String toHuman(String prefix, String separator, String suffix) {
    return toString0(prefix, separator, suffix, true);
  }
Gets a customized human string for this instance. This method will only work if every element
of the list implements {@link ToHuman}.

@param prefix {@code null-ok;} prefix for the start of the result
@param separator {@code null-ok;} separator to insert between each item
@param suffix {@code null-ok;} suffix for the end of the result
@return {@code non-null;} the custom string
android/android_framework/dex-maker/src/main/java/com/android/dx/util/FixedSizeList.java