Extend incremental analysis to object declaration

Fixed #KT-37250

idea/testData/codeInsight/outOfBlock/InitBlockInObject.kt

@@ -0,0 +1,8 @@
+// OUT_OF_CODE_BLOCK: FALSE
+// ERROR: Unresolved reference: call
+
+object Foo {
+    init {
+        c<caret>ll()
+    }
+}