[F] compilerAssert
function compilerAssert(   condition,   message,   target?): asserts condition;Use this to report bugs in the compiler, and not errors in the source code being compiled.
Parameters
Section titled “Parameters”| Parameter | Type | Description | 
|---|---|---|
| condition | any | Throw if this is not true. | 
| message | string | Error message. | 
| target? | DiagnosticTarget | Optional location in source code that might give a clue about what got the compiler off track. | 
Returns
Section titled “Returns”asserts condition