Changes functionality with string templates containing new lines

[guitarislife87]

When trying to add this to one of our projects, I noticed the library changing the behavior of several of our classes that format strings. Digging into the output code, it appears that tspath is adding a semicolon immediately after return when returning a string template, so, return ` would become return;` . I created a test case to replicate the behavior.

Source:

class TestClass {

        public getString(): string {
                const content = `
                        Do something
                `;
                this._notUsed(content);
                return this._getString(content);
        }

        private _notUsed(value: string): string {
                return `
                        ${value}
               `;

        }

        private _getString(value: string): string {
                return `
                        This ${value} is on the next line
                `;
        }
}

console.log(new TestClass().getString());

Expected:

                        This 
                        Do something
                 is on the next line

Returned:
undefined