tests(f2/repl): migrate basic tests

Change-Id: I22241734a7249d376c86b3a226c5f1a82c03fd33

tests/functional2/repl_characterization/repl_basics/error.md

@@ -0,0 +1,44 @@
+Errors at the top of an expression are printed normally:
+
+```nix
+builtins.throw "Evil puppy detected!!!"
+```
+```output
+error:
+       … caused by explicit throw
+         at «string»:1:1:
+            1| builtins.throw "Evil puppy detected!!!"
+             | ^
+
+       error: Evil puppy detected!!!
+
+```
+
+
+Errors in attribute values are printed inline, to make it easier to explore
+values like nixpkgs where some parts of the value fail to evaluate:
+
+```nix
+{ puppy = builtins.throw "This puppy is EVIL!!!"; puppy2 = "This puppy is GOOD :)"; }
+```
+```output
+{
+  puppy = «error: This puppy is EVIL!!!»;
+  puppy2 = "This puppy is GOOD :)";
+}
+
+```
+
+
+Same for list values:
+
+```nix
+[ (builtins.throw "This puppy is EVIL!!!") ("This puppy is GOOD :)") ]
+```
+```output
+[
+  «error: This puppy is EVIL!!!»
+  "This puppy is GOOD :)"
+]
+
+```