[groovy] do not load ast while resolving GrAnonymousClassDefinitionImpl#getBaseClassType (IDEA-155550)

plugins/groovy/groovy-psi/src/org/jetbrains/plugins/groovy/lang/psi/impl/statements/typedef/GrAnonymousClassDefinitionImpl.java

@@ -63,6 +63,10 @@ public class GrAnonymousClassDefinitionImpl extends GrTypeDefinitionImpl impleme
   @Override
   @NotNull
   public GrCodeReferenceElement getBaseClassReferenceGroovy() {
+    GrTypeDefinitionStub stub = getStub();
+    if (stub != null) {
+      return GroovyPsiElementFactory.getInstance(getProject()).createReferenceElementFromText(stub.getBaseClassName(), this);
+    }
     //noinspection ConstantConditions
     return findNotNullChildByClass(GrCodeReferenceElement.class); //not null because of definition =)
   }
@@ -108,23 +112,14 @@ public class GrAnonymousClassDefinitionImpl extends GrTypeDefinitionImpl impleme
   @Override
   @NotNull
   public PsiClassType getBaseClassType() {
-    final GrTypeDefinitionStub stub = getStub();
-    if (stub == null) {
-      myCachedBaseType = null;
+    if (isInQualifiedNew()) {
       return createClassType();
     }
 
     PsiClassType type = SoftReference.dereference(myCachedBaseType);
     if (type != null && type.isValid()) return type;
 
-    if (isInQualifiedNew()) {
-      return createClassType();
-    }
-
-    final String refText = stub.getBaseClassName();
-    assert refText != null : stub;
-    type = new GrClassReferenceType(GroovyPsiElementFactory.getInstance(getProject()).createReferenceElementFromText(refText, this));
-
+    type = createClassType();
     myCachedBaseType = new SoftReference<PsiClassType>(type);
     return type;
   }

plugins/groovy/test/org/jetbrains/plugins/groovy/lang/psi/GrStubAstSwitchTest.groovy

@@ -19,6 +19,7 @@ import com.intellij.psi.*
 import com.intellij.psi.impl.source.PsiFileImpl
 import com.intellij.psi.search.GlobalSearchScope
 import com.intellij.psi.stubs.StubIndex
+import com.intellij.psi.util.InheritanceUtil
 import groovy.transform.CompileStatic
 import org.jetbrains.plugins.groovy.LightGroovyTestCase
 import org.jetbrains.plugins.groovy.lang.psi.api.statements.typedef.GrAnonymousClassDefinition
@@ -267,5 +268,9 @@ class A {
     definition.baseClassType
     assert psiFile.stub
     assert !psiFile.contentsLoaded
+
+    assert InheritanceUtil.isInheritor(definition, Runnable.name)
+    assert psiFile.stub
+    assert !psiFile.contentsLoaded
   }
 }