6620329: jstack prints double native methods on Solaris/sparc
Summary: Fixed stack walking code in sparc to start frame walk from last_java_sp.
Reviewed-by: sgoldman
a61af66fc99eb5ec9d50c05b0c599757b1289ceb jdk7-b24
7836be3e92d0a4f9ee7566f602c91f5609534e66 jdk7-b25
ad0b851458ff9d1d490ed2d79bb84f75a9fdb753 jdk7-b26
e3d2692f8442e2d951166dc9bd9a330684754438 jdk7-b27
c14dab40ed9bf45ad21150bd70c9c80cdf655415 jdk7-b28