Extension operator function should be automatically imported for java function with the same name (KT-9406)

There's no need to import extension for Java operators anymore. Import for Kotlin functions.

 #KT-9406 Fixed

idea/testData/quickfix/autoImports/indexCallExtensionImportGetOnNoOperatorWarning.test

@@ -0,0 +1,42 @@
+// FILE: first.before.kt
+// "Import" "true"
+
+package testing
+
+import some.Some
+
+fun foo(): Some = Some()
+
+fun testing() {
+    foo()<caret>["str"]
+}
+
+
+
+// FILE: second.kt
+package some
+
+public class Some {
+    fun get(s: String) {}
+}
+
+operator fun Some.get(s: String) {}
+
+
+
+// FILE: first.after.kt
+// "Import" "true"
+
+package testing
+
+import some.Some
+import some.get
+
+fun foo(): Some = Some()
+
+fun testing() {
+    foo()<caret>["str"]
+}
+
+
+