Fix JNI invocation of constructors.

The code that "virtualizes" method invocations was attempting to
virtualize a call to a constructor.  Constructors are direct methods,
so this resulted in a spurious CloneNotSupportedException.

Bug 3354578

(cherry-pick from dalvik-dev)

Change-Id: Ib158ab7fc6b2874eba1fc2afa45fd5436c1f2a8a
1 file changed