Infer JDK dynamic proxies for Spring beans

[sdeleuze]

After a discussion with @snicoll and @jhoeller insights, we found that it is possible to infer automatically JDK dynamic proxies required by Spring beans during the AOT processing.

[sdeleuze]

@snicoll @jhoeller A draft implementation is available on gh-28980.

While transactional and cache-simple-jdk-proxy AOT smoke tests sample work without specific hints, validation one fails with:

Caused by: com.oracle.svm.core.jdk.UnsupportedFeatureError: Proxy class defined by interfaces [interface jakarta.validation.Validator, interface org.springframework.aop.SpringProxy, interface org.springframework.aop.framework.Advised, interface org.springframework.core.DecoratingProxy] not found. Generating proxy classes at runtime is not supported. Proxy classes need to be defined at image build time by specifying the list of interfaces that they implement. To define proxy classes use -H:DynamicProxyConfigurationFiles=<comma-separated-config-files> and -H:DynamicProxyConfigurationResources=<comma-separated-config-resources> options.
	at com.oracle.svm.core.util.VMError.unsupportedFeature(VMError.java:89) ~[na:na]
	at com.oracle.svm.reflect.proxy.DynamicProxySupport.getProxyClass(DynamicProxySupport.java:158) ~[na:na]
	at java.lang.reflect.Proxy.getProxyConstructor(Proxy.java:48) ~[validation:na]
	at java.lang.reflect.Proxy.newProxyInstance(Proxy.java:1037) ~[validation:na]
	at org.springframework.aop.framework.JdkDynamicAopProxy.getProxy(JdkDynamicAopProxy.java:126) ~[na:na]
	at org.springframework.aop.framework.ProxyFactory.getProxy(ProxyFactory.java:110) ~[na:na]
	at org.springframework.context.annotation.ContextAnnotationAutowireCandidateResolver.buildLazyResolutionProxy(ContextAnnotationAutowireCandidateResolver.java:130) ~[na:na]
	at org.springframework.context.annotation.ContextAnnotationAutowireCandidateResolver.getLazyResolutionProxyIfNecessary(ContextAnnotationAutowireCandidateResolver.java:54) ~[na:na]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1292) ~[validation:6.0.0-SNAPSHOT]
	at org.springframework.beans.factory.aot.BeanInstanceSupplier.resolveArgument(BeanInstanceSupplier.java:332) ~[na:na]
	at org.springframework.beans.factory.aot.BeanInstanceSupplier.resolveArguments(BeanInstanceSupplier.java:265) ~[na:na]
	at org.springframework.beans.factory.aot.BeanInstanceSupplier.get(BeanInstanceSupplier.java:208) ~[na:na]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.obtainInstanceFromSupplier(AbstractAutowireCapableBeanFactory.java:1225) ~[validation:6.0.0-SNAPSHOT]

Not sure yet why this one is not detected.