hg: lambda/lambda/langtools: Added basic support for constructor references.

[Florian Weimer]

* Paulo Silveira:

> why not plain old java.lang.reflect.Field if a new property syntax is
> not possible?

Field objects are not immutable, and the access control model does not
match what you'd expect in the lambda context (that is, a field
reference serves as a capability to access the field).

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Florian Weimer                <fweimer at bfk.de>
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