hg: graal/graal-compiler: 2 new changesets

[doug.simon at oracle.com]

Changeset: a544264916b8
Author:    Tom Rodriguez <tom.rodriguez at oracle.com>
Date:      2015-11-03 12:11 -0800
URL:       http://hg.openjdk.java.net/graal/graal-compiler/rev/a544264916b8

Don't discard type information in getSucceedingStampForValue

! graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/IsNullNode.java

Changeset: ccdecd8cc1f2
Author:    Tom Rodriguez <tom.rodriguez at oracle.com>
Date:      2015-11-03 12:18 -0800
URL:       http://hg.openjdk.java.net/graal/graal-compiler/rev/ccdecd8cc1f2

Don't register unchanged stamps

! graal/com.oracle.graal.phases.common/src/com/oracle/graal/phases/common/DominatorConditionalEliminationPhase.java