Reproducible InternalError in lambda stuff

[Charles Oliver Nutter]

I can reproduce this by running a fairly normalish command in JRuby:

(Java::JavaLang::InternalError)
    guard=Lambda(a0:L,a1:L,a2:L,a3:L,a4:L)=>{
    t5:I=MethodHandle(ThreadContext,IRubyObject,IRubyObject,IRubyObject)boolean(a1:L,a2:L,a3:L,a4:L);
    t6:L=MethodHandleImpl.selectAlternative(t5:I,(MethodHandle(ThreadContext,IRubyObject,IRubyObject,IRubyObject)IRubyObject),(MethodHandle(ThreadContext,IRubyObject,IRubyObject,IRubyObject)IRubyObject));
    t7:L=MethodHandle.invokeBasic(t6:L,a1:L,a2:L,a3:L,a4:L);t7:L}

I think it's happening at an OutOfMemory event (bumping up memory
makes it go away), so it may not be a critical issue, but I thought
I'd toss it out here.

- Charlie