Request for reviews (M): 6941529: SharedRuntime::raw_exception_handler_for_return_address must reset thread MethodHandle flag

[Christian Thalinger]

http://cr.openjdk.java.net/~twisti/6941529/webrev.01/

6941529: SharedRuntime::raw_exception_handler_for_return_address must reset thread MethodHandle flag
Summary: During testing a bug was hit when an exception returned to the interpreter and the SP was wrong.
Reviewed-by: 

During SPARC JSR 292 testing I hit a bug when an exception returned to
the interpreter and the SP was wrong.  That happened because the
is_method_handle_exception flag in thread was not reset and still
true.

The suggested fix is to reset the flag on method entry.

Additionally with this fix I'd like to rename
is_method_handle_exception to is_method_handle_return since that name
fits better.

src/cpu/x86/vm/c1_Runtime1_x86.cpp
src/cpu/x86/vm/runtime_x86_32.cpp
src/cpu/x86/vm/sharedRuntime_x86_64.cpp
src/cpu/x86/vm/stubGenerator_x86_32.cpp
src/share/vm/opto/runtime.cpp
src/share/vm/runtime/sharedRuntime.cpp
src/share/vm/runtime/thread.hpp