"Debug Failure" with misplaced 'continue' and async/await

[andyfischer]

If the continue keyword is used outside of a loop, and there's an await on the other side of the conditional (see sample code below), this causes an ugly error.

TypeScript Version: 2.4.2

Code

function dummyPromise() {
    return new Promise((resolve, reject) => {});
}

async function func() {
    if (true) {
        continue;
    } else {
        await dummyPromise();
    }
}

Expected behavior:

This should print error TS1107: Jump target cannot cross function boundary. (this is usually the message when continue is wrongly used outside of a loop)

Actual behavior:

afischer-mba ~/ts-bug-report $ tsc -v
Version 2.4.2
afischer-mba ~/ts-bug-report $ tsc src/test.ts 
/usr/local/lib/node_modules/typescript/lib/tsc.js:55776
                throw e;
                ^

Error: Debug Failure. 
    at findContinueTarget (/usr/local/lib/node_modules/typescript/lib/tsc.js:48265:22)
    at transformAndEmitContinueStatement (/usr/local/lib/node_modules/typescript/lib/tsc.js:47796:25)
    at transformAndEmitStatementWorker (/usr/local/lib/node_modules/typescript/lib/tsc.js:47551:28)
    at transformAndEmitStatement (/usr/local/lib/node_modules/typescript/lib/tsc.js:47531:13)
    at transformAndEmitStatements (/usr/local/lib/node_modules/typescript/lib/tsc.js:47515:17)
    at transformAndEmitEmbeddedStatement (/usr/local/lib/node_modules/typescript/lib/tsc.js:47520:17)
    at transformAndEmitIfStatement (/usr/local/lib/node_modules/typescript/lib/tsc.js:47617:21)
    at transformAndEmitStatementWorker (/usr/local/lib/node_modules/typescript/lib/tsc.js:47541:28)
    at transformAndEmitStatement (/usr/local/lib/node_modules/typescript/lib/tsc.js:47531:13)
    at transformAndEmitStatements (/usr/local/lib/node_modules/typescript/lib/tsc.js:47515:17)

[walter211]

but how?