Unconditionally enable component-model tests (#4556)

* Unconditionally enable component-model tests

* Remove an outdated test that wasn't previously being compiled

* Fix a component model doc test

* Try to decrease memory usage in qemu

tests/all/component_model.rs

@@ -90,6 +90,14 @@ const REALLOC_AND_FREE: &str = r#"
 fn engine() -> Engine {
     let mut config = Config::new();
     config.wasm_component_model(true);
+
+    // When pooling allocator tests are skipped it means we're in qemu. The
+    // component model tests create a disproportionate number of instances so
+    // try to cut down on virtual memory usage by avoiding 4G reservations.
+    if crate::skip_pooling_allocator_tests() {
+        config.static_memory_maximum_size(0);
+        config.dynamic_memory_guard_size(0);
+    }
     Engine::new(&config).unwrap()
 }
 

tests/all/main.rs

@@ -1,7 +1,6 @@
 mod async_functions;
 mod call_hook;
 mod cli_tests;
-#[cfg(feature = "component-model")]
 mod component_model;
 mod custom_signal_handler;
 mod debug;

tests/all/wast.rs

@@ -33,7 +33,6 @@ fn run_wast(wast: &str, strategy: Strategy, pooling: bool) -> anyhow::Result<()>
         .wasm_memory64(memory64)
         .cranelift_debug_verifier(true);
 
-    #[cfg(feature = "component-model")]
     cfg.wasm_component_model(feature_found(wast, "component-model"));
 
     if feature_found(wast, "canonicalize-nan") {