Fixed one more case of no-auto-insertion after "as"

idea/testData/completion/handlers/smart/AutoCompleteAfterAs3.kt

@@ -0,0 +1,4 @@
+fun bar(o: Any): String {
+    val v: String = o as <caret>
+    return ""
+}

idea/testData/completion/handlers/smart/AutoCompleteAfterAs3.kt.after

@@ -0,0 +1,4 @@
+fun bar(o: Any): String {
+    val v: String = o as String<caret>
+    return ""
+}