Merged ea55682eefe7 and a4ddeef7c5e9

Align JavaClass>>enclosingClass with java.lang.Class.getEnclosingClass() Use same algorithm (i.e., return declaring class if there's no EnclosingMethod attribute)

Fixed native java.lang.Class.getEnclosingMethod0 ReflectionTests now pass.

Merged a63cf3e1042f and 3890b120ec7f

Little tweak in ReflectiveEnvironment Do not use java.util.logging for now, on JDK 7 it requires some not-yet-implemented natives. Also, do not try to open .so as .zip, it won't work.

Merged 9aade8151557 and 189c572dbe71

Fixed getDeclaringClass() native. Look for declaring class in InnerClasses attribute.

Class reading optimization [4/4]: defer cache flushing at class initialization time. Do not flush caches when class is read, instead, defer flushint at the very last moment, when a class is actually initialized. This should be sufficent as an object cannot be sent a message unless a class is initialized first. This saves us a little bit of time when reading classes but cost time when initializing the class, so normally this is not much of a saving. However, this helps in cases Java class is only read into memory and never initialized - that's what JBrowser Workspace does.

Classr reading optimization [3/4]: Optimize JavaMethod class>>numArgsFromDescriptor: The code is kind of ugly, but it is optimized for speed as profiling shown that some 10% time was spent in descriptor parsing. New code is written upon assumption we get a proper method descriptor (i.e., descriptor, not signature with type parameters)..

(Class reading) optimization [2/4]: rewrite slow ifNil:... by faster isNil ifTrue:... Currently, stc does not optimize ifNil:(ifNotNil) sends resulting in slow code. `isNil ifTrue:` code is inlinded. This should be rather fixed in stc than here, but...you know.