[test] Fix `npm run validate` #514

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10 errors

A computed property name in an ambient context must refer to an expression whose type is a literal type or a 'unique symbol' type.

Property 'dispose' does not exist on type 'SymbolConstructor'.

A computed property name in an ambient context must refer to an expression whose type is a literal type or a 'unique symbol' type.

Property 'asyncDispose' does not exist on type 'SymbolConstructor'.

A computed property name in an ambient context must refer to an expression whose type is a literal type or a 'unique symbol' type.

Cannot find name 'Disposable'.

Property 'asyncDispose' does not exist on type 'SymbolConstructor'.

A computed property name in an ambient context must refer to an expression whose type is a literal type or a 'unique symbol' type.

Property 'dispose' does not exist on type 'SymbolConstructor'.

A computed property name in an ambient context must refer to an expression whose type is a literal type or a 'unique symbol' type.