Missing semi-colon in the extendsHelper #27312

The missing semi-colon after the declaration of the extendStatics variable/function (es2015.ts, line 4082) results in linting errors (JSHint). For projects that contain both TypeScript and JavaScript source files, this presents a problem in CI builds, as its not always feasible to bypass semi-colon terminator requirements when linting the project.

It looks like this is just an oversight, since semi-colons are used consistently elsewhere.

This would not show up as a build error since the helper is specified as a string of text.

Expected behavior:
The extendsHelper helper should include a semi-colon after declaring the extendsStatic variable.

Actual behavior:
The semi-colon is missing.