RFR 8027137: Merge ScriptFunction and ScriptFunctionImpl

[Attila Szegedi]

Great work! I’m very happy that ScriptFunctionImpl is going away.

Some implementation remarks:

- The newly public methods in Global.java, getFunctionPrototype and getTypeErrorThrower don’t have Javadoc.
- The newly public two constructors of PrototypeObject also don’t hava Javadoc.
-  while you're at it, how about we replace ScriptFunction.constructorCount/invokes/allocations fields with LongAdder objects? We should gradually be replacing all such static counters.
- can we create an explicit subclass for bound functions? It can be declared as "private static class Bound extends ScriptFunction { ... }" within the ScriptFunction class. When we debug, we'll then see its name as ScriptFunction$Bound instead of ScriptFunction$1.

Attila.

> On Sep 9, 2015, at 10:19 AM, Sundararajan Athijegannathan <sundararajan.athijegannathan at oracle.com> wrote:
> 
> Please review http://cr.openjdk.java.net/~sundar/8027137/ for https://bugs.openjdk.java.net/browse/JDK-8027137
> 
> Thanks,
> -Sundar