bench/suite_bench: use snake case for input files

rust identifiers may not contain -

use _ for files also to avoid confusion of having two names

Makefile

@@ -38,7 +38,8 @@ suite:
 suite_bench:
 	git submodule update --init modules/djot.js
 	for f in $$(find modules/djot.js/bench -name '*.dj' | xargs basename -a); do \
-		ln -fs ../../modules/djot.js/bench/$$f tests/bench/$$f; \
+		dst=$$(echo $$f | sed 's/-/_/g'); \
+		ln -fs ../../modules/djot.js/bench/$$f tests/bench/$$dst; \
 	done
 	(cd tests/bench && make)
 	cargo test --features suite_bench bench::
@@ -47,7 +48,8 @@ suite_bench:
 bench:
 	git submodule update --init modules/djot.js
 	for f in $$(find modules/djot.js/bench -name '*.dj' | xargs basename -a); do \
-		ln -fs ../modules/djot.js/bench/$$f bench/$$f; \
+		dst=$$(echo $$f | sed 's/-/_/g'); \
+		ln -fs ../modules/djot.js/bench/$$f bench/$$dst; \
 	done
 
 cov: suite suite_bench

bench/input/build.rs

@@ -8,12 +8,11 @@ fn main() {
             if let Some(name) = entry.file_name().to_str() {
                 if let Some(name) = name.strip_suffix(".dj") {
                     if entry.file_type().map_or(false, |ty| !ty.is_dir()) {
-                        let name_snake = name.replace('-', "_");
                         let input = std::fs::read_to_string(
                             std::path::Path::new("..").join(entry.file_name()),
                         )
                         .ok()?;
-                        return Some((name_snake, input));
+                        return Some((name.to_string(), input));
                     }
                 }
             }

tests/bench/Makefile

@@ -9,7 +9,7 @@ DJOT_JS_SRC=$(shell find ${DJOT_JS}/src -name '.ts')
 mod.rs: ${TEST_DJ} html
 	echo "use crate::suite_test;" > $@
 	for name in ${TEST}; do \
-		name_snake=$$(basename -a $$name | sed 's/-/_/g'); \
+		name_snake=$$(basename -a $$name); \
 		skip_reason=$$(grep -E "^$${name_snake}:" skip | cut -d: -f2); \
 		[ -n "$$skip_reason" ] && echo "#[ignore = \"$${skip_reason}\"]"; \
 		echo "#[test]"; \