[Analysis API] rework KDoc resolution

1. Optimize it by removing a tower data context collection (KT-59189)
2. Rework the behavior, so it simulates the tower resolve by returning the set of symbols only from the first tower level, which is not empty

^KT-59189 fixed

analysis/analysis-api/testData/referenceResolve/kDoc/parameters/ClassPrimaryConstructorValParameter.txt

@@ -1,3 +1,2 @@
 Resolved to:
-0: (in C) val aa: kotlin.Int
-1: aa: kotlin.Int
+0: aa: kotlin.Int