Invalid caret position for missing given argument error messages

[som-snytt]

Compiler version

Welcome to Scala 3.2.1-RC1-bin-SNAPSHOT-git-baf21dd (18.0.1.1, Java OpenJDK 64-Bit Server VM).

Minimized code

scala> def f = summon[Int]
-- Error: --------------------------------------------------------------------------------------------------------------
1 |def f = summon[Int]
  |                   ^
  |                   No given instance of type Int was found for parameter x of method summon in object Predef
1 error found

Output

The caret doesn't seem to be aligned.

Expectation

The caret should be aligned with the guilty text.

[griggt]

It seems that the caret is pointing to the missing given argument. This may be by design, IDK.

[som-snytt]

@griggt Clever! So the caret is really a pen, and the compiler can't think of anything to write.

I did something with f(42) where def f needed a given; was the caret on the f or the paren? 🤔

[som-snytt]

Yes, at the paren https://github.com/lampepfl/dotty/pull/15616/files#diff-e19e7d425dad1356477e831edebb088a7560425354d2061fe4f4feeb0e3f68beR3

and no paren https://github.com/lampepfl/dotty/pull/15616/files#diff-e19e7d425dad1356477e831edebb088a7560425354d2061fe4f4feeb0e3f68beR34

This may be a feature request. 😄