Adjust the API name entry for nested classes

[eed3si9n]

Problem

#20157 demonstrated that some build pipelining tests fail on the latest sbt 1.10.0-RC2:

Error:  (sbt-test / scripted) Failed tests:
Error:  	pipelining/Yjava-tasty-fromjavaobject
Error:  	pipelining/Yjava-tasty-paths

This is likely caused by inconsistent capturing of APIs from Java sources in ExtractAPI vs AnalyzingJavaCompiler in Zinc.

Solution

This adjusts the API name entry for Java nested classes.

[bishabosha]

Thanks for investigating this! I'll review soon

[lrytz]

Should this be backported to Scala 2?

[eed3si9n]

2.13 bridge should be ok hopefully. As far as I know, the extracted name hasn't changed on Zinc side in a while.

[adpi2]

LGTM

So the problem was the canonical name of Java static class:

package example;

class A {
  static class B { }
}

The canonical name of B should be example.A.B and not example.A$.B