Gradle projects do not build correctly (the bin/ directory again)

#634 is the underlying issue, but that was closed by brushing it under the carpet (IMO it deserves to be fixed). The problem I have is actually worse - the classpath is incomplete because it doesn't contain resources created and/or copied into build/resources/main (for instance) by script targets in the build. It's easy to reproduce the problem - here's an example: https://github.com/scratches/vscode-gradle-nonsense (load it up in VSCode and try and run the tests from the codelens and they fail, even though the build succeeds from command line).

See also https://github.com/microsoft/vscode-java-debug/issues/1127

从链接的复现仓库开始，将通过 VSCode codelens 运行测试与通过命令行成功构建进行比较。阅读 issue #634 和相关的 vscode-java-debug issue，然后跟踪在 build/resources/main 中创建或复制的资源如何在 codelens 测试类路径中表示。完成标准是：这些资源可用时，复现的测试能够成功运行。