hg: graal/graal-compiler: Use correct operand size when emitting TEST instruction for null comparison.

[doug.simon at oracle.com]

Changeset: 2adc45c38bde
Author:    Roland Schatz <roland.schatz at oracle.com>
Date:      2015-11-11 17:02 +0100
URL:       http://hg.openjdk.java.net/graal/graal-compiler/rev/2adc45c38bde

Use correct operand size when emitting TEST instruction for null comparison.

! graal/com.oracle.graal.compiler.amd64/src/com/oracle/graal/compiler/amd64/AMD64ArithmeticLIRGenerator.java