[213] Switch to 213 platform

KTI-1114

build-common/src/org/jetbrains/kotlin/incremental/storage/CachingLazyStorage.kt

@@ -16,6 +16,8 @@
 
 package org.jetbrains.kotlin.incremental.storage
 
+import com.intellij.util.CommonProcessors
+import com.intellij.util.io.AppendablePersistentMap
 import com.intellij.util.io.DataExternalizer
 import com.intellij.util.io.IOUtil
 import com.intellij.util.io.KeyDescriptor
@@ -59,7 +61,9 @@ class CachingLazyStorage<K, V>(
 
     override val keys: Collection<K>
         @Synchronized
-        get() = getStorageIfExists()?.allKeysWithExistingMapping ?: listOf()
+        get() = buildList {
+            getStorageIfExists()?.processKeysWithExistingMapping(CommonProcessors.CollectProcessor(this))
+        }
 
     @Synchronized
     override operator fun contains(key: K): Boolean =
@@ -84,7 +88,7 @@ class CachingLazyStorage<K, V>(
         check(valueExternalizer is AppendableDataExternalizer<*>) {
             "`valueExternalizer` should implement the `AppendableDataExternalizer` interface to be able to call `append`"
         }
-        getStorageOrCreateNew().appendData(key, { valueExternalizer.save(it, value) })
+        getStorageOrCreateNew().appendData(key, AppendablePersistentMap.ValueDataAppender { valueExternalizer.save(it, value) })
     }
 
     @Synchronized