Merge "Fix Layout.isRtlCharAt" into lmp-dev

        int[] runs = dirs.mDirections;

        int lineStart = getLineStart(line);

        for (int i = 0; i < runs.length; i += 2) {

            int start = lineStart + (runs[i] & RUN_LENGTH_MASK);

            // No need to test the end as an offset after the last run should return the value

            // corresponding of the last run

            if (offset >= start) {

            int start = lineStart + runs[i];

            int limit = start + (runs[i+1] & RUN_LENGTH_MASK);

            if (offset >= start && offset < limit) {

                int level = (runs[i+1] >>> RUN_LEVEL_SHIFT) & RUN_LEVEL_MASK;

                return ((level & 1) != 0);

            }