FIR: Get rid of FirCallableSymbol::isFakeOverride and isIntersectionOverride

plugins/fir/fir-plugin-prototype/src/org/jetbrains/kotlin/fir/plugin/generators/AllOpenMemberGenerator.kt

@@ -46,7 +46,7 @@ class AllOpenMemberGenerator(session: FirSession) : FirDeclarationGenerationExte
             returnTypeRef = annotatedDeclaration.returnTypeRef
             status = annotatedDeclaration.status
             name = Name.identifier("hello${propertyName.capitalize()}")
-            symbol = FirNamedFunctionSymbol(CallableId(owner.classId, name), isFakeOverride = false)
+            symbol = FirNamedFunctionSymbol(CallableId(owner.classId, name))
         }
         return listOf(GeneratedDeclaration(function, owner))
     }
@@ -55,4 +55,4 @@ class AllOpenMemberGenerator(session: FirSession) : FirDeclarationGenerationExte
 
     override val key: FirPluginKey
         get() = AllOpenPluginKey
-}
+}

plugins/fir/fir-plugin-prototype/src/org/jetbrains/kotlin/fir/plugin/generators/AllOpenNestedClassGenerator.kt

@@ -81,7 +81,7 @@ class AllOpenNestedClassGenerator(session: FirSession) : FirDeclarationGeneratio
                 Modality.FINAL
             )
             name = Name.identifier("hello")
-            symbol = FirNamedFunctionSymbol(CallableId(classId, name), isFakeOverride = false)
+            symbol = FirNamedFunctionSymbol(CallableId(classId, name))
         }
         return listOf(constructor, function)
     }

plugins/fir/fir-plugin-prototype/src/org/jetbrains/kotlin/fir/plugin/generators/AllOpenTopLevelDeclarationsGenerator.kt

@@ -59,7 +59,7 @@ class AllOpenTopLevelDeclarationsGenerator(session: FirSession) : FirDeclaration
                 Modality.FINAL
             )
             name = Name.identifier("hello")
-            symbol = FirNamedFunctionSymbol(CallableId(klass.symbol.classId, name), isFakeOverride = false)
+            symbol = FirNamedFunctionSymbol(CallableId(klass.symbol.classId, name))
         }
         return listOf(function)
     }