CLONE -Groovy Support for annotations on local variable declarations: Part II - Allow Local Transforms to process such annotations

Groovy should support annotations on local variable declarations. It is syntactically legal to annotate a local variable, but the AST produced does not carry that annotation.

My use case with the AST builder. Either we'd like to annotate a local variable, like this:

@AstSource(CompilePhase.CONVERSION)
def source = { println "compiled on: ${new Date()}" }

Or annotate a property within a closure (which is a DeclarationExpression), like this:

def result = new AstBuilder().build {
           phase = CompilePhase.CONVERSION
           @AstSource
           source = { println "compiled on: ${new Date()}" }
 }

A getAnnotations() method should probably be added to DeclarationExpression to support this.