[SR-14644] Incorrect error message when making function calls in keypath literal

[swift-ci]

Previous ID	SR-14644
Radar	None
Original Reporter	cukier (JIRA User)
Type	Bug
Status	Resolved
Resolution	Done

Additional Detail from JIRA

Votes	0
Component/s	Compiler
Labels	Bug, DiagnosticsQoI, TypeChecker
Assignee	@LucianoPAlmeida
Priority	Medium

md5: 73a377b893a4dab34ff0158768ba72bf

Issue Description:

let kp = \Int.byteSwapped.byteSwapped.signum()

The code above generates two diagnostics, the second one is invalid because I have more than one components in the keypath, even if you don't count the invalid one

<source>:1:39: error: invalid component of Swift key path
let kp = \Int.byteSwapped.byteSwapped.signum()
                                      ^
<source>:1:10: error: key path must have at least one component
let kp = \Int.byteSwapped.byteSwapped.signum()
         ^

(in 5.3 the error was talking about adding explicit type to the keypath, even though the type is explicit already)

[LucianoPAlmeida]

Fixed on master by #37521
cukier (JIRA User) Can you please verify on next available snapshot and close. Thanks