[^yole] EA-27703 - a chained call with null-safe invocation can't seem to be a qualified class name

plugins/groovy/src/org/jetbrains/plugins/groovy/lang/psi/util/PsiUtil.java

@@ -1133,6 +1133,8 @@ public class PsiUtil {
       final PsiElement nameElement = ((GrReferenceExpression)qualifier).getReferenceNameElement();
       if (((GrReferenceExpression)qualifier).getTypeArguments().length > 0) return false;
       if (nameElement == null || nameElement.getNode().getElementType() != GroovyTokenTypes.mIDENT) return false;
+      IElementType dotType = ((GrReferenceExpression)qualifier).getDotTokenType();
+      if (dotType != null && dotType != GroovyTokenTypes.mDOT) return false;
       qualifier = ((GrReferenceExpression)qualifier).getQualifierExpression();
     }
     return qualifier == null;

plugins/groovy/test/org/jetbrains/plugins/groovy/lang/resolve/TypeInferenceTest.java

@@ -206,6 +206,10 @@ public class TypeInferenceTest extends GroovyResolveTestCase {
     assertTypeEquals("java.lang.String", "A.groovy");
   }
 
+  public void testSafeInvocationInClassQualifier() {
+    assertTypeEquals("java.lang.Class", "SafeInvocationInClassQualifier.groovy");
+  }
+
   public void testReturnTypeFromMethodClosure() {
     assertTypeEquals("java.lang.String","A.groovy");
   }

plugins/groovy/testdata/resolve/inference/safeInvocationInClassQualifier/SafeInvocationInClassQualifier.groovy

@@ -0,0 +1,2 @@
+def foo = []
+println foo?.prop?.cl<ref>ass