Implement Java 9 module visibility checks

In this commit, only IDE tests are added, because we look for module
declarations in the IDE across the whole project, whereas in the
compiler we should do this on the module path only and that requires
separate work (KT-18599) which is done in the following commits.

(The change in Cache.kt is needed so that
JvmModuleAccessibilityChecker.ClassifierUsage, which is an inner class,
would be injected properly.)

 #KT-18598 In Progress
 #KT-18599 In Progress

idea/testData/multiModuleHighlighting/java9/unnamedDependsOnNamed/dependency/module-info.java

@@ -0,0 +1,3 @@
+module dependency {
+    exports dependency;
+}