[10] RFR(S) 8194988: 8 Null pointer dereference defect groups related to MultiNode::proj_out()

[dean.long at oracle.com]

http://cr.openjdk.java.net/~dlong/8194988/webrev/

https://bugs.openjdk.java.net/browse/JDK-8194988


I introduced MultiNode::proj_out_or_null() for paths that either check 
the result before dereferencing or don't dereference at all.  Paths that 
dereference without checking the return value will continue using 
proj_out(), where I added an assert that the return value is not NULL.  
This preserves current behavior except that we will assert instead of 
trapping with SEGV, and it makes the static analyzer happy.


dl