[EH] Rename option/pass names for new EH (exnref) (#6592)

We settled on the name `WASM_EXNREF` for the new setting in Emscripten
for the name for the new EH option.
https://github.com/emscripten-core/emscripten/blob/2bc5e3156f07e603bc4f3580cf84c038ea99b2df/src/settings.js#L782-L786
"New EH" sounds vague and I'm not sure if "experimental" is really
necessary anyway, given that the potential users of this option is aware
that this is a new spec that has been adopted recently.

To make the option names consistent, this renames `--translate-to-eh`
(the option that only runs the translator) to `--translate-to-exnref`,
and `--experimental-new-eh` to `--emit-exnref` (the option that runs the
translator at the end of the whole pipeline), and renames the pass and
variable names in the code accordingly as well.

In case anyone is using the old option names (and also to make the
Chromium CI pass), this does not delete the old options.

1 files changed, 5 insertions, 2 deletions

diff --git a/src/passes/pass.cpp b/src/passes/pass.cpp
index c5a2bcc55..5e5ee04a4 100644
--- a/src/passes/pass.cpp
+++ b/src/passes/pass.cpp
@@ -501,8 +501,11 @@ void PassRegistry::registerPasses() {
                "strip the wasm target features section",
                createStripTargetFeaturesPass);
   registerPass("translate-to-new-eh",
-               "translate old EH instructions to new ones",
-               createTranslateToNewEHPass);
+               "deprecated; same as translate-to-exnref",
+               createTranslateToExnrefPass);
+  registerPass("translate-to-exnref",
+               "translate old Phase 3 EH instructions to new ones with exnref",
+               createTranslateToExnrefPass);
   registerPass("trap-mode-clamp",
                "replace trapping operations with clamping semantics",
                createTrapModeClamp);