RFR: JDK14-8236841: compact constructor parameters are always final

[Vicente Romero]

Hi,

Please review this simple fix for bug [1] at [2]. Javac was setting the 
FINAL flag to all the parameters of the compact constructor. This patch 
fixes that,

Thanks,
Vicente

[1] https://bugs.openjdk.java.net/browse/JDK-8236841
[2] http://cr.openjdk.java.net/~vromero/8236841/webrev.00/