KT-7486 Auto import inserts qualified name in companion object

#KT-7486 Fixed

idea/idea-completion/testData/handlers/basic/PlatformStaticInClass.kt

@@ -0,0 +1,5 @@
+class A {
+    pl<caret>
+}
+
+// ELEMENT: platformStatic

idea/idea-completion/testData/handlers/basic/PlatformStaticInClass.kt.after

@@ -0,0 +1,7 @@
+import kotlin.platform.platformStatic
+
+class A {
+    platformStatic<caret>
+}
+
+// ELEMENT: platformStatic

idea/idea-completion/testData/handlers/basic/PlatformStaticInCompanionObject.kt

@@ -0,0 +1,7 @@
+class A {
+    companion object {
+        pl<caret>
+    }
+}
+
+// ELEMENT: platformStatic

idea/idea-completion/testData/handlers/basic/PlatformStaticInCompanionObject.kt.after

@@ -0,0 +1,9 @@
+import kotlin.platform.platformStatic
+
+class A {
+    companion object {
+        platformStatic<caret>
+    }
+}
+
+// ELEMENT: platformStatic