RFR 8073707: const re-assignment should not reported as a "early error"

[Hannes Wallnoefer]

The fix is incomplete as it does not substitute early error checks with 
runtime checks for local (non-scope) symbols.

This also exposes a gap in our tests regarding non-scope const. I'm 
assigning the bug to myself to add the missing check and tests.

Hannes

Am 2015-02-24 um 10:34 schrieb A. Sundararajan:
> Please review http://cr.openjdk.java.net/~sundar/8073707/ for 
> https://bugs.openjdk.java.net/browse/JDK-8073707
>
> Thanks,
> -Sundar