error TS5055: Cannot write file 'tests/cases/compiler/a.js' because it would overwrite input file.
Adding a tsconfig.json file will help organize projects that contain both TypeScript and JavaScript files. Learn more at https://aka.ms/tsconfig.
tests/cases/compiler/a.js(1,6): error TS8015: 'enum declarations' can only be used in a .ts file.
!!! error TS5055: Cannot write file 'tests/cases/compiler/a.js' because it would overwrite input file.
!!! error TS5055: Adding a tsconfig.json file will help organize projects that contain both TypeScript and JavaScript files. Learn more at https://aka.ms/tsconfig.
==== tests/cases/compiler/a.js (1 errors) ====
enum E { }
~
!!! error TS8015: 'enum declarations' can only be used in a .ts file.
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