K2 IC: add lookups of candidates on tower level processing

Allow recording lookup to symbols from supertypes, required at least
for CRI.

partially fixes #KTIJ-29026

jps/jps-plugin/testData/incremental/lookupTracker/jvm/javaStatics/instanceUsage1.K1.kt

@@ -0,0 +1,5 @@
+import /*p:<root>*/Main./*p:Main*/Other.*
+
+/*p:<root>*/fun bar() {
+    /*p:<root> p:<root>(invoke) p:Main(invoke) p:Main.Other p:Main.Other(invoke)*/INSTANCE()
+}