[AA] recognize library module by roots

merging `LLFirSelectingCombinedSymbolProvider.selectFirstElementInClasspathOrder`
relies on the fact that a candidate belongs to exactly one module.
This can be not true for libraries, attached to multiple modules.
 In that case we need to accept "wrong module" to retrieve correct provider

analysis/analysis-test-framework/tests/org/jetbrains/kotlin/analysis/test/framework/project/structure/KtSourceModuleByCompilerConfiguration.kt

@@ -145,6 +145,19 @@ private class LibraryByRoots(
     override val platform: TargetPlatform get() = module.platform
     override val analyzerServices: PlatformDependentAnalyzerServices get() = module.analyzerServices
     override fun getBinaryRoots(): Collection<Path> = roots
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (javaClass != other?.javaClass) return false
+
+        other as LibraryByRoots
+
+        return roots == other.roots
+    }
+
+    override fun hashCode(): Int {
+        return roots.hashCode()
+    }
+
     override val librarySources: KtLibrarySourceModule? get() = null
 }