[groovy] consider keywords as valid parts of fqn while adjusting references (IDEA-134006)

plugins/groovy/groovy-psi/src/org/jetbrains/plugins/groovy/lang/psi/impl/PsiImplUtil.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2000-2015 JetBrains s.r.o.
+ * Copyright 2000-2016 JetBrains s.r.o.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -964,7 +964,9 @@ public class PsiImplUtil {
     while (expr instanceof GrReferenceExpression) {
       final PsiElement nameElement = ((GrReferenceExpression)expr).getReferenceNameElement();
       if (((GrReferenceExpression)expr).getTypeArguments().length > 0) return false;
-      if (nameElement == null || nameElement.getNode().getElementType() != GroovyTokenTypes.mIDENT) return false;
+      if (nameElement == null || !TokenSets.CODE_REFERENCE_ELEMENT_NAME_TOKENS.contains(nameElement.getNode().getElementType())) {
+        return false;
+      }
       IElementType dotType = ((GrReferenceExpression)expr).getDotTokenType();
       if (dotType != null && dotType != GroovyTokenTypes.mDOT) return false;
       expr = ((GrReferenceExpression)expr).getQualifierExpression();

plugins/groovy/test/org/jetbrains/plugins/groovy/completion/GroovyClassNameCompletionTest.groovy

@@ -316,4 +316,33 @@ print new Upper.Inner()
 ''')
   }
 
+  void "test complete class within 'in' package"() {
+    myFixture.with {
+      addClass '''\
+package in.foo.com;
+public class Foooo {}
+'''
+      configureByText '_.groovy', 'Fooo<caret>'
+      complete CompletionType.BASIC
+      type '\n'
+      checkResult '''import in.foo.com.Foooo
+
+Foooo<caret>'''
+    }
+  }
+
+  void "test complete class within 'def' package"() {
+    myFixture.with {
+      addClass '''\
+package def.foo.com;
+public class Foooo {}
+'''
+      configureByText '_.groovy', 'Fooo<caret>'
+      complete CompletionType.BASIC
+      type '\n'
+      checkResult '''import def.foo.com.Foooo
+
+Foooo<caret>'''
+    }
+  }
 }