Override getText() in light classes to prevent decompiler errors on Kotlin sources

Fixes EA-58277

compiler/jet.as.java.psi/src/org/jetbrains/jet/asJava/FakeLightClassForFileOfPackage.java

@@ -83,4 +83,9 @@ public class FakeLightClassForFileOfPackage extends AbstractLightClass implement
     public PsiElement copy() {
         return new FakeLightClassForFileOfPackage(getManager(), delegate, file);
     }
+
+    @Override
+    public String getText() {
+        return null;
+    }
 }

compiler/jet.as.java.psi/src/org/jetbrains/jet/asJava/KotlinLightClass.kt

@@ -17,7 +17,6 @@
 package org.jetbrains.jet.asJava;
 
 import com.intellij.psi.PsiClass;
-import org.jetbrains.annotations.NotNull;
 import org.jetbrains.jet.lang.resolve.name.FqName;
 import org.jetbrains.jet.lang.resolve.java.jetAsJava.KotlinLightElement
 import org.jetbrains.jet.lang.psi.JetClassOrObject

compiler/jet.as.java.psi/src/org/jetbrains/jet/asJava/KotlinWrappingLightClass.java

@@ -24,13 +24,14 @@ import com.intellij.psi.PsiMethod;
 import com.intellij.psi.impl.PsiClassImplUtil;
 import com.intellij.psi.impl.light.AbstractLightClass;
 import com.intellij.psi.impl.light.LightField;
-import org.jetbrains.jet.asJava.light.KotlinLightField;
 import com.intellij.psi.impl.light.LightMethod;
 import com.intellij.psi.impl.source.ClassInnerStuffCache;
 import com.intellij.psi.impl.source.PsiExtensibleClass;
 import com.intellij.util.Function;
 import com.intellij.util.containers.ContainerUtil;
 import org.jetbrains.annotations.NotNull;
+import org.jetbrains.jet.asJava.light.KotlinLightField;
+import org.jetbrains.jet.lang.psi.JetClassOrObject;
 import org.jetbrains.jet.lang.psi.JetDeclaration;
 import org.jetbrains.jet.lang.psi.JetProperty;
 
@@ -132,4 +133,10 @@ public abstract class KotlinWrappingLightClass extends AbstractLightClass implem
             }
         });
     }
+
+    @Override
+    public String getText() {
+        JetClassOrObject origin = getOrigin();
+        return origin == null ? null : origin.getText();
+    }
 }