KT-6132 No smart completion for argument of java static method

#KT-6132 Fixed

compiler/frontend/src/org/jetbrains/jet/lang/resolve/scopes/receivers/Qualifier.kt

@@ -35,7 +35,7 @@ import org.jetbrains.jet.lang.psi.JetExpression
 import org.jetbrains.jet.lang.resolve.bindingContextUtil.recordScopeAndDataFlowInfo
 import kotlin.properties.Delegates
 
-public trait Qualifier {
+public trait Qualifier: ReceiverValue {
 
     public val expression: JetExpression
 
@@ -56,7 +56,7 @@ class QualifierReceiver (
         val referenceExpression: JetSimpleNameExpression,
         override val packageView: PackageViewDescriptor?,
         override val classifier: ClassifierDescriptor?
-) : Qualifier, ReceiverValue {
+) : Qualifier {
 
     override val expression: JetExpression = referenceExpression.getTopmostParentQualifiedExpressionForSelector() ?: referenceExpression
 

idea/src/org/jetbrains/jet/plugin/completion/ExpectedInfos.kt

@@ -68,6 +68,8 @@ import org.jetbrains.jet.lang.descriptors.SimpleFunctionDescriptor
 import org.jetbrains.jet.plugin.project.ResolveSessionForBodies
 import org.jetbrains.jet.lang.descriptors.VariableDescriptor
 import org.jetbrains.jet.lang.resolve.calls.results.ResolutionStatus
+import org.jetbrains.jet.lang.resolve.scopes.receivers.Qualifier
+import org.jetbrains.jet.lang.resolve.scopes.receivers.QualifierReceiver
 
 enum class Tail {
     COMMA
@@ -132,12 +134,13 @@ class ExpectedInfos(val bindingContext: BindingContext, val resolveSession: Reso
         if (parent is JetQualifiedExpression && callElement == parent.getSelectorExpression()) {
             val receiverExpression = parent.getReceiverExpression()
             val expressionType = bindingContext[BindingContext.EXPRESSION_TYPE, receiverExpression]
+            val qualifier = bindingContext[BindingContext.QUALIFIER, receiverExpression]
             if (expressionType != null) {
                 receiver = ExpressionReceiver(receiverExpression, expressionType)
                 callOperationNode = parent.getOperationTokenNode()
             }
-            else if (bindingContext[BindingContext.QUALIFIER, receiverExpression] != null) {
-                receiver = ReceiverValue.NO_RECEIVER
+            else if (qualifier != null) {
+                receiver = qualifier
                 callOperationNode = null
             }
             else {

idea/testData/completion/smartMultiFile/FunctionFromAnotherPackage/FunctionFromAnotherPackage.kt

@@ -0,0 +1,8 @@
+package p1
+
+fun test(s: String, i: Int) {
+    p2.foo(<caret>)
+
+fun foo(i: Int) = i
+
+// EXIST: s

idea/testData/completion/smartMultiFile/FunctionFromAnotherPackage/Package.kt

@@ -0,0 +1,3 @@
+package p2
+
+fun foo(s: String) {}

idea/tests/org/jetbrains/jet/completion/MultiFileSmartCompletionTestGenerated.java

@@ -19,6 +19,7 @@ package org.jetbrains.jet.completion;
 import com.intellij.testFramework.TestDataPath;
 import org.jetbrains.jet.JUnit3RunnerWithInners;
 import org.jetbrains.jet.JetTestUtils;
+import org.jetbrains.jet.test.InnerTestClasses;
 import org.jetbrains.jet.test.TestMetadata;
 import org.junit.runner.RunWith;
 
@@ -35,6 +36,12 @@ public class MultiFileSmartCompletionTestGenerated extends AbstractMultiFileSmar
         JetTestUtils.assertAllTestsPresentByMetadata(this.getClass(), new File("idea/testData/completion/smartMultiFile"), Pattern.compile("^([^\\.]+)$"), false);
     }
 
+    @TestMetadata("FunctionFromAnotherPackage")
+    public void testFunctionFromAnotherPackage() throws Exception {
+        String fileName = JetTestUtils.navigationMetadata("idea/testData/completion/smartMultiFile/FunctionFromAnotherPackage/");
+        doTest(fileName);
+    }
+
     @TestMetadata("JavaStaticMethodArgument")
     public void testJavaStaticMethodArgument() throws Exception {
         String fileName = JetTestUtils.navigationMetadata("idea/testData/completion/smartMultiFile/JavaStaticMethodArgument/");