KT-9418 Suggest name for new declaration basing on unresolved names in code

#KT-9418 Fixed

idea/idea-completion/testData/basic/common/fromUnresolvedNames/FunctionInCompanionObject.kt

@@ -0,0 +1,32 @@
+// RUN_HIGHLIGHTING_BEFORE
+
+class C {
+    fun foo(p: Int) {
+        unresolvedInFoo1()
+        if (p > 0) {
+            unresolvedInFoo2()
+        }
+    }
+
+    companion object {
+        fun <caret>
+
+        fun bar() {
+            unresolvedInBar()
+        }
+    }
+
+    fun zoo() {
+        unresolvedInZoo()
+    }
+}
+
+fun f() {
+    unresolvedOutside()
+}
+
+// EXIST: unresolvedInFoo1
+// EXIST: unresolvedInFoo2
+// EXIST: unresolvedInBar
+// EXIST: unresolvedInZoo
+// ABSENT: unresolvedOutside