Strange parity issues from BYOND tests

[amylizzle]

These ones are just weird

• TEST FAILED: Tests/Operators/Overloads/complex_numbers.dm -- binary operators do not have an implicit return src in BYOND
• TEST FAILED: Tests/Operators/logical_assign.dm -- https://www.byond.com/forum/post/2983416
• TEST FAILED: Tests/Operators/scope.dm -- // this does not compile in BYOND, that is just a bug -- I don't think this is true, test may be malformed
• TEST FAILED: Tests/Preprocessor/EmptyAndDirectiveMacros.dm -- weird indent on line 16? bug filed https://www.byond.com/forum/post/2983336
• TEST FAILED: Tests/Preprocessor/whitespace_before_var.dm -- OD is more permissive about this than BYOND
• TEST FAILED: Tests/Procs/final_proc2.dm -- Tests/Procs/final_proc2.dm:8:error: final: duplicate definition https://www.byond.com/forum/post/2983339
• TEST FAILED: Tests/Builtins/nameof_lvalues.dm -- Tests/Builtins/nameof_lvalues.dm:5:error: nameof: requires a var, proc reference, or type path https://www.byond.com/forum/post/2983340