=== tests/cases/compiler/sourceMapValidationFunctions.ts ===
var greetings = 0;
>greetings : number

function greet(greeting: string): number {
>greet : (greeting: string) => number
>greeting : string

    greetings++;
>greetings++ : number
>greetings : number

    return greetings;
>greetings : number
}
function greet2(greeting: string, n = 10, x?: string, ...restParams: string[]): number {
>greet2 : (greeting: string, n?: number, x?: string, ...restParams: string[]) => number
>greeting : string
>n : number
>x : string
>restParams : string[]

    greetings++;
>greetings++ : number
>greetings : number

    return greetings;
>greetings : number
}
function foo(greeting: string, n = 10, x?: string, ...restParams: string[])
>foo : (greeting: string, n?: number, x?: string, ...restParams: string[]) => void
>greeting : string
>n : number
>x : string
>restParams : string[]
{
    return;
}