Description:
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I would like to suggest to implement anonymous class declaration as done in Java, while maintaining compatibility with current syntax.

Currently, in order to extend a class or implement an interface, you would need to write:

new class (construct params) extends Base implements Interface { ... }

however, this could be simplified as

new MyClass { .. }

as equivalent to

new class() extends MyClass { ... }

or else

new MyInterface { ... }

as equivalent to

new class() implements MyInterface { ... }

This would also help better those with a Java background use them, even if it is just syntactinc sugar.