Provide heuristic dependencies for LibraryInfo

This is not and cannot be (with current IDEA model) accurate
For now we use the following approximation:
    If a module dependends on library 'a' and among module's dependencies (including this module)
	there is a module that depends on library 'b' then
	we assume that library 'a' depends on library 'b'

idea/idea-analysis/src/org/jetbrains/jet/plugin/caches/resolve/IdeaModuleInfos.kt

@@ -133,12 +133,15 @@ public data class LibraryInfo(val project: Project, val library: Library) : Idea
     override fun contentScope() = LibraryWithoutSourceScope(project, library)
 
     override fun dependencies(): List<IdeaModuleInfo> {
-        //TODO: (module refactoring) heuristic dependencies for libraries
+        val result = LinkedHashSet<IdeaModuleInfo>()
-        val orderEntry = ModuleManager.getInstance(project).getModules().stream().flatMap {
+        result.add(this)
-            ModuleRootManager.getInstance(it).getOrderEntries().stream()
+
-        }.firstOrNull { it is JdkOrderEntry } as? JdkOrderEntry
+        val (libraries, sdks) = LibraryDependenciesCache(project).getLibrariesAndSdksUsedWith(library)
-        val sdk = orderEntry?.getJdk()
+
-        return if (sdk != null) listOf(SdkInfo(project, sdk), this) else listOf(this)
+        sdks.mapTo(result) { SdkInfo(project, it) }
+        libraries.mapTo(result) { LibraryInfo(project, it) }
+
+        return result.toList()
     }
 }