2.0 final - regression with thrown block

[boris-petrov]

Issue description

This worked in 2.0-M5-groovy-3.0 but broke in 2.0-groovy-3.0.

How to reproduce

package test

import spock.lang.Specification

class SomeSpec extends Specification {
	def 'bar'() {
		when:
		def (a, b) = foo()

		then:
		thrown(Exception)
	}
}

The problem is with the deconstruction of the result of foo(). With it the Spock compiler blows up:

Description	Resource	Path	Location	Type
Groovy:Unexpected error during compilation of spec 'test.SomeSpec'. Maybe you have used invalid Spock syntax? Anyway, please file a bug report at http://issues.spockframework.org.

Additional Environment information

Eclipse IDE. Same result with Gradle.

Java/JDK

openjdk 15.0.2 2021-01-19
OpenJDK Runtime Environment (build 15.0.2+7)
OpenJDK 64-Bit Server VM (build 15.0.2+7, mixed mode)

Groovy version

3.0.7

Build tool version

2.0-groovy-3.0

Gradle

Gradle 7.0.2

Operating System

Linux

IDE

Eclipse

[leonard84]

This is probably caused by #1314