Highlight constructor name on invocation for inspector

We have some IDE things like `Show Type Hierarchies` that highlight a range (in this case, the type name - see https://github.com/dart-lang/sdk/issues/62815 for a recent issue around it). I think it would be beneficial for the inspector if we could see the constructor invocation highlighted, too. Not just move the IDE focus to the line where it is, since that can be a bit ambiguous in case of nested similar structures.

CC @DanTup