RFR: 8158639: C2 compilation fails with SIGSEGV

[Vladimir Ivanov]

> revised webrev with comments:
> http://cr.openjdk.java.net/~jcm/8158639/webrev.01/index.html

Code changes look good.

test/compiler/jsr292/NullConstantReceiver.java

   * @bug 8059556
+ * @bug 8158639

No need in new tag: @bug supports multiple bug ids.

+ * @run main/othervm -Xbatch -XX:CompileCommand=exclude,*::run 
compiler.jsr292.NullConstantReceiver

Consider using dontinline directive instead.

Best regards,
Vladimir Ivanov