Function call gives bogus error about type arguments when real problem is a missing argument

[mattmccutchen]

TypeScript Version: master (60986ad)

Search Terms: "expected" "type arguments but got"

Code

function f<A, B = {}>(arg: number) {}
f<number>();

Expected behavior: Error: Expected 1 arguments, but got 0.

Actual behavior: Error: Expected 1-2 type arguments, but got 1.

Playground Link: link

Related Issues: #19374

[mattmccutchen]

Easy fix up at #25733.