Revert "[SLC] Support generics and ignore whitespace in KtSuperTypeList.findEntry"

This reverts commit e77f5c7764.

analysis/light-classes-base/src/org/jetbrains/kotlin/asJava/classes/implUtils.kt

@@ -13,11 +13,24 @@ import com.intellij.util.IncorrectOperationException
 import org.jetbrains.kotlin.analyzer.KotlinModificationTrackerService
 import org.jetbrains.kotlin.psi.*
 
-fun KtSuperTypeList.findEntry(fqNameToFind: String): KtSuperTypeListEntry? =
-    entries.find { it.typeAsUserType?.simpleName == fqNameToFind }
+fun KtSuperTypeList.findEntry(fqNameToFind: String): KtSuperTypeListEntry? {
+    val name = fqNameToFind.substringAfterLast(delimiter = '.', missingDelimiterValue = "")
+    if (name.isEmpty()) {
+        return entries.find { it.typeAsUserType?.textMatches(fqNameToFind) == true }
+    }
 
-private val KtUserType.simpleName: String?
-    get() = qualifier?.let { "${it.simpleName}.$referencedName" } ?: referencedName
+    val qualifier = fqNameToFind.substringBeforeLast('.')
+    val entries = entries.mapNotNull { entry -> entry.typeAsUserType?.let { entry to it } }
+        .filter { (_, type) -> type.referencedName == name && (type.qualifier?.textMatches(qualifier) != false) }
+        .ifEmpty { return null }
+
+    return if (entries.size == 1) {
+        entries.first().first
+    } else {
+        val entry = entries.firstOrNull { it.second.qualifier != null } ?: entries.firstOrNull()
+        entry?.first
+    }
+}
 
 // NOTE: avoid using blocking lazy in light classes, it leads to deadlocks
 fun <T> lazyPub(initializer: () -> T) = lazy(LazyThreadSafetyMode.PUBLICATION, initializer)