[test] Move basic tests in lit/ to lit/basic/

[aheejin]

Here 'basic' tests means that what we have in binaryen/test/. We check three things with those tests:

• Run wasm-opt -all -g on it and compare the output with *.from-wast
• Run wasm-as -all -g and wasm-dis on it and compare the output with *.fromBinary.
• Run wasm-as -all and wasm-dis on it and compare the output with *.fromBinary.noDebugInfo.

I planned to move those to test/lit/. But test/lit/ has other kind of tests as well, so I think it'd be nice to have a dedicated directory for these tests.

Before doing that, I noticed there are already four tests that have been already ported to do this, and this PR moves them to test/lit/basic/.

I couldn't come up with a better name than basic. If you have other suggestions please let me know.

[tlively]

Moving these to a basic directory sounds good to me!

The CHECK-NODEBUG output appears at the end because the auto-update script doesn't know how to match up the minimal generated names with the human-readable input names.

[aheejin]

The CHECK-NODEBUG output appears at the end because the auto-update script doesn't know how to match up the minimal generated names with the human-readable input names.

Yeah I realized that and deleted the comment but it was too late 😅
But by the way, I'm trying to port tests in test/ into lit, but some files just don't generate NODEBUG lines. For example:

;; RUN: wasm-as %s -all -o %t.wasm                                               
;; RUN: wasm-dis %t.wasm -all -o %t.bin.wast                                     
;; RUN: cat %t.bin.wast | filecheck %s --check-prefix=CHECK                      
                                                                                 
(module                                                                          
 (func $test                                                                     
  (drop                                                                          
    (i32.const 0)                                                                
  )                                                                              
 )                                                                               
)

Note that there's no -g in the wasm-as line. When I run update_lit_checks.py, CHECK lines don't get generated at the end; they are just not generated. Do you know why?

[tlively]

Do the tests with the missing checks not pass --all-items to the update script? That’s the only thing I can think of.

[aheejin]

Do the tests with the missing checks not pass --all-items to the update script? That’s the only thing I can think of.

Huh, yeah, passing --all-items seems to do the trick. But wasn't that for generating other module items such as type or memory? I thought funcs should be generated without the flag.