test(ts): split lang into a fixture per module and key reject's refusals by item

.taplo.toml

@@ -5,3 +5,8 @@ exclude = ["**/target/**", "**/.direnv/**", ".scratch/**", ".tmp/**", "uniffi/**
 indent_string = "    "
 column_width = 150
 align_comments = false
+
+# A root added at the end of reject's long list would conflict with any other added there.
+[[rule]]
+include = ["ts/fixtures/reject/ts.toml"]
+formatting.reorder_arrays = true

quest/m3/ts-fma-allowance.md

@@ -5,13 +5,12 @@
 Waits on upstream. wasm32's `fma`, compiler-builtins' generic libm, rounds some
 near-ties a last place off
 ([rust-lang/compiler-builtins#1353](https://github.com/rust-lang/compiler-builtins/issues/1353)),
-so the lang fixture's differential accepts a `floats::mul_adds` result where the
+so the `lang/floats` fixture's differential accepts a `floats::mul_adds` result where the
 translation is the exactly rounded one and native is a last place from it
-(`ts/fixtures/lang/fma.ts`).
+(`ts/fixtures/lang/floats/fma.ts`).
 
 Once [rust-lang/compiler-builtins#1358](https://github.com/rust-lang/compiler-builtins/pull/1358)
 ships in the compiler-builtins that the pinned nightly in `ts/rust-toolchain.toml`
-builds, delete `fma.ts` and every use of it: `caller.ts`'s import and `within`'s
-call, its copy in `ts/tests/fixtures.rs`'s `lang_differential`, and its test
-`ts/tests/fma.ts` with `fma_allowance` in `ts/tests/runtime.rs`, so any difference
-fails again, and delete this quest.
+builds, delete `fma.ts` and every use of it: `floats/caller.ts`'s import and
+`within`'s call, and its test `ts/tests/fma.ts` with `fma_allowance` in
+`ts/tests/runtime.rs`, so any difference fails again, and delete this quest.

ts/Cargo.toml

@@ -15,7 +15,19 @@ rustc_private = true
 [workspace]
 # Its own workspace, apart from the repo's: the driver builds on ts/rust-toolchain.toml's
 # nightly, which the other projects do not use.
-members = ["fixtures/*"]
+members = [
+    "fixtures/bind",
+    "fixtures/census",
+    "fixtures/codec",
+    "fixtures/crates",
+    # A fixture per module of the language, beside what they share.
+    "fixtures/lang/*",
+    "fixtures/names",
+    "fixtures/reject",
+    "fixtures/share",
+    "fixtures/stock",
+    "fixtures/task",
+]
 resolver = "3"
 
 [workspace.package]