tests/cases/compiler/classDeclarationBlockScoping1.ts(5,5): error TS9004: 'class' declarations are only supported directly inside a module or as a top level declaration.
==== tests/cases/compiler/classDeclarationBlockScoping1.ts (1 errors) ====
class C {
}
{
~~~~~
!!! error TS9004: 'class' declarations are only supported directly inside a module or as a top level declaration.