Add in files

Author: keithwhor

tests/files/cases/function_valid_inline.js

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+return 'lol'; // valid

tests/files/cases/function_valid_inline_await.js

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+const sleep = t => new Promise(res => setTimeout(() => res(null), t))
+await sleep(100);
+return `hello world`;

tests/files/cases/function_valid_inline_empty.js

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+console.log('wat'); // valid

tests/gateway/functions/inline/await.js

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+const sleep = t => new Promise(res => setTimeout(() => res(null), t))
+await sleep(10);
+return `hello world`;