Fixed multiple bugs in optimize imports for JS-target

#KT-13689 Fixed

idea/testData/editor/optimizeImports/jvm/PlusAndPlusAssign.kt

@@ -0,0 +1,11 @@
+// NAME_COUNT_TO_USE_STAR_IMPORT: 2
+import p1.plus
+import p2.v1
+import p2.v2
+import p2.v3
+
+fun f(runnable: Runnable) {
+    var r = runnable
+    r += 1
+    v1 + v2 + v3
+}