TSC compiler 2.8.1 crashes on type casting from loaded JSON file

[sebsto]

TypeScript Version: 2.8.1

Search Terms: 2.8.1, 2.8, throw e, "Debug Failure. False expression: Target symbol and symbol do not have the same name"

Code

3 files are needed

1. json-loader.d.ts

declare module "*.json" {
    const value: any;
    export default value;
}

2. test.json

{
    "fr-FR" :
    [
        "test"
    ]
}

3. test.ts

interface Test {
    [locale: string] : Array<string>;
}
import * as f from './test.json';
const problem: Test = <Test>f

Expected behavior:
tsc compiles without error (this is the behaviour with 2.7.x)

Actual behavior:

$ tsc *.ts
/usr/local/lib/node_modules/typescript/lib/tsc.js:61464
                throw e;
                ^

Error: Debug Failure. False expression: Target symbol and symbol do not have the same name
    at getLiteralTypeFromPropertyName (/usr/local/lib/node_modules/typescript/lib/tsc.js:26752:30)
    at eachPropertyRelatedTo (/usr/local/lib/node_modules/typescript/lib/tsc.js:28844:36)
    at indexTypesRelatedTo (/usr/local/lib/node_modules/typescript/lib/tsc.js:28893:36)
    at structuredTypeRelatedTo (/usr/local/lib/node_modules/typescript/lib/tsc.js:28593:51)
    at recursiveTypeRelatedTo (/usr/local/lib/node_modules/typescript/lib/tsc.js:28423:53)
    at isRelatedTo (/usr/local/lib/node_modules/typescript/lib/tsc.js:28139:38)
    at checkTypeRelatedTo (/usr/local/lib/node_modules/typescript/lib/tsc.js:27990:26)
    at checkTypeComparableTo (/usr/local/lib/node_modules/typescript/lib/tsc.js:27717:20)
    at checkAssertionWorker (/usr/local/lib/node_modules/typescript/lib/tsc.js:34558:21)
    at checkAssertion (/usr/local/lib/node_modules/typescript/lib/tsc.js:34549:20)

Playground Link:
n/a

Related Issues:
n/a

[j-oliveras]

Duplicate of #22403?

Seems it will be solved into version 2.8.3. You can try a nightly build.

In case of compiler crashes, is better search for the name of the name of the last function in call stack.

[sebsto]

Works on 2.9.0

$ ./node_modules/typescript/bin/tsc --version
Version 2.9.0-dev.20180414

$ ./node_modules/typescript/bin/tsc *.ts
$

[RyanCavanaugh]

@sebsto thanks for testing on latest