Approval request for 8032207 and 8031743

[Igor Veresov]

Requesting approval for these guys:

changeset:   4955:d159f9d85a18
user:        iveresov
date:        Fri Jan 17 18:09:08 2014 -0800
summary:     8032207: C2: assert(VerifyOops || MachNode::size(ra_) <= (3+1)*4) failed: bad fixed size

changeset:   4956:179c1940854f
tag:         tip
user:        iveresov
date:        Tue Jan 21 20:05:28 2014 -0800
summary:     8031743: C2: loadI2L_immI broken for negative memory values


igor