Do not select item by typing dot only for auto-popup completion

idea/src/org/jetbrains/kotlin/idea/completion/KotlinCompletionCharFilter.kt

@@ -21,6 +21,8 @@ import com.intellij.codeInsight.lookup.Lookup
 import com.intellij.codeInsight.lookup.CharFilter.Result
 import org.jetbrains.kotlin.psi.JetFile
 import com.intellij.openapi.util.Key
+import com.intellij.codeInsight.completion.CompletionService
+import com.intellij.codeInsight.completion.CompletionProgressIndicator
 
 public class KotlinCompletionCharFilter() : CharFilter() {
     class object {
@@ -32,6 +34,9 @@ public class KotlinCompletionCharFilter() : CharFilter() {
     override fun acceptChar(c : Char, prefixLength : Int, lookup : Lookup) : Result? {
         if (lookup.getPsiFile() !is JetFile) return null
         if (!lookup.isCompletion()) return null
+        // it does not work in tests, so we use other way
+//        val isAutopopup = CompletionService.getCompletionService().getCurrentCompletion().isAutopopupCompletion()
+        val isAutopopup = (CompletionService.getCompletionService().getCurrentCompletion() as CompletionProgressIndicator).getParameters().getInvocationCount() == 0
 
         if (Character.isJavaIdentifierPart(c) || c == ':' /* used in '::xxx'*/ || c == '@') {
             return CharFilter.Result.ADD_TO_PREFIX
@@ -44,8 +49,7 @@ public class KotlinCompletionCharFilter() : CharFilter() {
 
         return when (c) {
             '.' -> {
-                //TODO: this heuristics better to be only used for auto-popup completion but I see no way to check this
-                if (prefixLength == 0 && !lookup.isSelectionTouched()) {
+                if (prefixLength == 0 && isAutopopup && !lookup.isSelectionTouched()) {
                     val caret = lookup.getEditor().getCaretModel().getOffset()
                     if (caret > 0 && lookup.getEditor().getDocument().getCharsSequence()[caret - 1] == '.') {
                         return Result.HIDE_LOOKUP