getting rid of ClsFileImpl.setPhysical

patch by Roman Shevchenko

compiler/light-classes/src/org/jetbrains/kotlin/asJava/LightClassDataProvider.kt

@@ -143,9 +143,11 @@ abstract class LightClassDataProvider<T : WithFileStubAndExtraDiagnostics>(
             override fun getPackageName(): String {
                 return packageFqName.asString()
             }
-        }
 
-        fakeFile.isPhysical = false
+            override fun isPhysical(): Boolean {
+                return false
+            }
+        }
 
         javaFileStub.psi = fakeFile
         return javaFileStub

idea/idea-analysis/src/org/jetbrains/kotlin/idea/caches/resolve/IDELightClassGenerationSupport.kt

@@ -345,8 +345,11 @@ class IDELightClassGenerationSupport(private val project: Project) : LightClassG
             override fun getMirror(): PsiElement {
                 return mirrorFile
             }
+
+            override fun isPhysical(): Boolean {
+                return false
+            }
         }
-        fakeFile.isPhysical = false
         javaFileStub.psi = fakeFile
         return fakeFile.classes.single() as ClsClassImpl
     }