Print the brief script for SFI

This code is commented out since a long time (at least since 2008), but
I found it to be useful information.
Instead of printing the full script information, just print the {Brief}
version. In a debugger, users can still print the full information based
on the printed pointer value if needed.

R=jkummerow@chromium.org

Change-Id: I79b19f0bbc8797746b916c1f5860f727c0f0ac39
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2015240Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#65969}

src/diagnostics/objects-printer.cc

@@ -1379,9 +1379,8 @@ void SharedFunctionInfo::SharedFunctionInfoPrint(std::ostream& os) {  // NOLINT
   os << "\n - data: " << Brief(function_data());
   os << "\n - code (from data): " << Brief(GetCode());
   PrintSourceCode(os);
-  // Script files are often large, hard to read.
-  // os << "\n - script =";
-  // script()->Print(os);
+  // Script files are often large, thus only print their {Brief} representation.
+  os << "\n - script: " << Brief(script());
   os << "\n - function token position: " << function_token_position();
   os << "\n - start position: " << StartPosition();
   os << "\n - end position: " << EndPosition();