SI-8667 Caret at bad arg

Pick the first excessive positional arg for the caret.

Note that erroring on named args doesn't do the obvious thing
in this regard.

If `k` was removed from the signature, then `f(k=1, i=2, j=3)`
doesn't tell us much about the wrong arg, because naming takes
the `k=1` as an assignment, `i` as duplicate naming. No arg is
deemed extra, though further inspection of the conflicting args
might get there. Since assignment syntax in parens is more|less
deprecated (?), no more effort is done here.

1 files changed, 5 insertions, 2 deletions

diff --git a/test/files/neg/protected-constructors.check b/test/files/neg/protected-constructors.check
index 5c880cb672..0279f5815d 100644
--- a/test/files/neg/protected-constructors.check
+++ b/test/files/neg/protected-constructors.check
@@ -1,6 +1,6 @@
 protected-constructors.scala:17: error: no arguments allowed for nullary constructor Foo1: ()dingus.Foo1
     val foo1 = new Foo1("abc")
-               ^
+                        ^
 protected-constructors.scala:18: error: constructor Foo2 in class Foo2 cannot be accessed in object P
  Access to protected constructor Foo2 not permitted because
  enclosing object P in package hungus is not a subclass of
@@ -19,4 +19,7 @@ protected-constructors.scala:15: error: class Foo3 in object Ding cannot be acce
  object Ding in package dingus where target is defined
     class Bar3 extends Ding.Foo3("abc")
                             ^
-four errors found
+protected-constructors.scala:15: error: no arguments allowed for nullary constructor Object: ()Object
+    class Bar3 extends Ding.Foo3("abc")
+                                 ^
+5 errors found