original file
-----------------------------------
interface X {
    x(): void
    y: number
}
export function foo(): void
class x { }
-----------------------------------

Grammar: TypeScript.tmLanguage
-----------------------------------
>interface X {
 ^^^^^^^^^
 source.ts meta.interface.ts storage.type.interface.ts
          ^
          source.ts meta.interface.ts
           ^
           source.ts meta.interface.ts entity.name.type.interface.ts
            ^
            source.ts meta.interface.ts
             ^
             source.ts meta.interface.ts punctuation.definition.block.ts
>    x(): void
 ^^^^
 source.ts meta.interface.ts meta.method.declaration.ts
     ^
     source.ts meta.interface.ts meta.method.declaration.ts meta.definition.method.ts entity.name.function.ts
      ^
      source.ts meta.interface.ts meta.method.declaration.ts meta.parameters.ts punctuation.definition.parameters.begin.ts
       ^
       source.ts meta.interface.ts meta.method.declaration.ts meta.parameters.ts punctuation.definition.parameters.end.ts
        ^
        source.ts meta.interface.ts meta.method.declaration.ts meta.return.type.ts keyword.operator.type.annotation.ts
         ^
         source.ts meta.interface.ts meta.method.declaration.ts meta.return.type.ts
          ^^^^
          source.ts meta.interface.ts meta.method.declaration.ts meta.return.type.ts support.type.primitive.ts
>    y: number
 ^^^^
 source.ts meta.interface.ts meta.field.declaration.ts
     ^
     source.ts meta.interface.ts meta.field.declaration.ts meta.definition.property.ts variable.object.property.ts
      ^
      source.ts meta.interface.ts meta.field.declaration.ts meta.type.annotation.ts keyword.operator.type.annotation.ts
       ^
       source.ts meta.interface.ts meta.field.declaration.ts meta.type.annotation.ts
        ^^^^^^
        source.ts meta.interface.ts meta.field.declaration.ts meta.type.annotation.ts support.type.primitive.ts
>}
 ^
 source.ts meta.interface.ts punctuation.definition.block.ts
>export function foo(): void
 ^^^^^^
 source.ts meta.function.ts keyword.control.export.ts
       ^
       source.ts meta.function.ts
        ^^^^^^^^
        source.ts meta.function.ts storage.type.function.ts
                ^
                source.ts meta.function.ts
                 ^^^
                 source.ts meta.function.ts meta.definition.function.ts entity.name.function.ts
                    ^
                    source.ts meta.function.ts meta.parameters.ts punctuation.definition.parameters.begin.ts
                     ^
                     source.ts meta.function.ts meta.parameters.ts punctuation.definition.parameters.end.ts
                      ^
                      source.ts meta.function.ts meta.return.type.ts keyword.operator.type.annotation.ts
                       ^
                       source.ts meta.function.ts meta.return.type.ts
                        ^^^^
                        source.ts meta.function.ts meta.return.type.ts support.type.primitive.ts
>class x { }
 ^^^^^
 source.ts meta.class.ts storage.type.class.ts
      ^
      source.ts meta.class.ts
       ^
       source.ts meta.class.ts entity.name.type.class.ts
        ^
        source.ts meta.class.ts
         ^
         source.ts meta.class.ts punctuation.definition.block.ts
          ^
          source.ts meta.class.ts
           ^
           source.ts meta.class.ts punctuation.definition.block.ts