Make JetSimpleNameExpression#isImportDirectiveExpression extension function and move it to util class

compiler/frontend/src/org/jetbrains/jet/lang/psi/JetSimpleNameExpression.kt

@@ -28,16 +28,6 @@ import org.jetbrains.jet.lexer.JetTokens.*
 
 public trait JetSimpleNameExpression : JetReferenceExpression {
 
-    public fun isImportDirectiveExpression(): Boolean {
-        val parent = getParent()
-        if (parent == null) {
-            return false
-        }
-        else {
-            return parent is JetImportDirective || parent.getParent() is JetImportDirective
-        }
-    }
-
     public fun getReferencedName(): String {
         val text = getReferencedNameElement().getNode()!!.getText()
         return JetPsiUtil.unquoteIdentifierOrFieldReference(text)

compiler/frontend/src/org/jetbrains/jet/lang/psi/psiUtil/jetPsiUtil.kt

@@ -303,3 +303,13 @@ public fun JetSimpleNameExpression.getReceiverExpression(): JetExpression? {
     }
     return null
 }
+
+public fun JetSimpleNameExpression.isImportDirectiveExpression(): Boolean {
+    val parent = getParent()
+    if (parent == null) {
+        return false
+    }
+    else {
+        return parent is JetImportDirective || parent.getParent() is JetImportDirective
+    }
+}

idea/src/org/jetbrains/jet/plugin/quickfix/AutoImportFix.java

@@ -43,6 +43,7 @@ import org.jetbrains.jet.lang.diagnostics.Diagnostic;
 import org.jetbrains.jet.lang.psi.JetFile;
 import org.jetbrains.jet.lang.psi.JetPsiUtil;
 import org.jetbrains.jet.lang.psi.JetSimpleNameExpression;
+import org.jetbrains.jet.lang.psi.psiUtil.PsiUtilPackage;
 import org.jetbrains.jet.lang.resolve.DescriptorUtils;
 import org.jetbrains.jet.lang.resolve.ImportPath;
 import org.jetbrains.jet.lang.resolve.lazy.KotlinCodeAnalyzer;
@@ -113,7 +114,7 @@ public class AutoImportFix extends JetHintAction<JetSimpleNameExpression> implem
     }
 
     private static boolean isSuppressedTopLevelImportInPosition(@NotNull JetSimpleNameExpression element) {
-        return element.isImportDirectiveExpression() || JetPsiUtil.isSelectorInQualified(element);
+        return PsiUtilPackage.isImportDirectiveExpression(element) || JetPsiUtil.isSelectorInQualified(element);
     }
 
     private static Collection<FqName> getJetTopLevelFunctions(