Extend incremental analysis to object declaration

Fixed #KT-37250

idea/testData/codeInsight/outOfBlock/InObjectPrivateFunctionWithoutInference.kt

@@ -0,0 +1,12 @@
+// OUT_OF_CODE_BLOCK: TRUE
+
+// as it's a object body not a named function body
+
+object A {
+    fun foo(): Int = 12
+
+    private fun bar(): Int = foo() + <caret>
+}
+
+// TYPE: 1
+// SKIP_ANALYZE_CHECK