[wasm][anyref] Add more tests

These are some tests I thought were missing. I wrote another test which
crashes because of missing safepoint maps. I will add it in a separate
CL which includes also the implementation.

R=herhut@chromium.org

Bug: v8:7581
Change-Id: Ibcc3b9ddab0f95580eb31fe78c84a26186a74db5
Reviewed-on: https://chromium-review.googlesource.com/c/1370039Reviewed-by: Stephan Herhut <herhut@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58159}

test/mjsunit/wasm/anyref.js

@@ -45,6 +45,41 @@ load("test/mjsunit/wasm/wasm-module-builder.js");
   instance.exports.main({hello: 'world'});
 })();
 
+(function testPassAnyRefWithGCWithLocals() {
+  print(arguments.callee.name);
+  const builder = new WasmModuleBuilder();
+  const ref_sig = builder.addType(kSig_v_r);
+  const void_sig = builder.addType(kSig_v_v);
+  const imp_index = builder.addImport("q", "func", ref_sig);
+  const gc_index = builder.addImport("q", "gc", void_sig);
+  // First call the gc, then check if the object still exists.
+  builder.addFunction('main', ref_sig)
+      .addLocals({anyref_count: 10})
+      .addBody([
+        kExprGetLocal, 0, kExprSetLocal, 1,             // Set local
+        kExprGetLocal, 0, kExprSetLocal, 2,             // Set local
+        kExprGetLocal, 0, kExprSetLocal, 3,             // Set local
+        kExprGetLocal, 0, kExprSetLocal, 4,             // Set local
+        kExprGetLocal, 0, kExprSetLocal, 5,             // Set local
+        kExprGetLocal, 0, kExprSetLocal, 6,             // Set local
+        kExprGetLocal, 0, kExprSetLocal, 7,             // Set local
+        kExprGetLocal, 0, kExprSetLocal, 8,             // Set local
+        kExprGetLocal, 0, kExprSetLocal, 9,             // Set local
+        kExprGetLocal, 0, kExprSetLocal, 10,            // Set local
+        kExprCallFunction, gc_index,                    // call gc
+        kExprGetLocal, 9, kExprCallFunction, imp_index  // call import
+      ])
+      .exportFunc();
+
+  function checkFunction(value) {
+    assertEquals('world', value.hello);
+  }
+
+  const instance = builder.instantiate({q: {func: checkFunction, gc: gc}});
+
+  instance.exports.main({hello: 'world'});
+})();
+
 (function testPassAnyRefWithGC() {
   print(arguments.callee.name);
   const builder = new WasmModuleBuilder();
@@ -69,6 +104,28 @@ load("test/mjsunit/wasm/wasm-module-builder.js");
   instance.exports.main({hello: 'world'});
 })();
 
+(function testPassAnyRefWithGCInWrapper() {
+  print(arguments.callee.name);
+  const builder = new WasmModuleBuilder();
+  const kSig_r_iri = makeSig([kWasmI32, kWasmAnyRef, kWasmI32], [kWasmAnyRef]);
+  const sig_index = builder.addType(kSig_r_iri);
+  builder.addFunction('main', sig_index)
+      .addBody([kExprGetLocal, 1])
+      .exportFunc();
+
+  const instance = builder.instantiate();
+
+  const triggerGCParam = {
+    valueOf: () => {
+      gc();
+      return 17;
+    }
+  };
+
+  const result = instance.exports.main(triggerGCParam, {hello: 'world'}, triggerGCParam);
+  assertEquals('world', result.hello);
+})();
+
 (function testAnyRefNull() {
   print(arguments.callee.name);
   const builder = new WasmModuleBuilder();
@@ -99,6 +156,19 @@ load("test/mjsunit/wasm/wasm-module-builder.js");
   assertEquals(0, instance.exports.main(print));
 })();
 
+(function testAnyRefNullIsNull() {
+  print(arguments.callee.name);
+
+  const builder = new WasmModuleBuilder();
+  builder.addFunction('main', kSig_i_v)
+      .addBody([kExprRefNull, kExprRefIsNull])
+      .exportFunc();
+
+  const instance = builder.instantiate();
+
+  assertEquals(1, instance.exports.main());
+})();
+
 (function testAnyRefLocalDefaultValue() {
   print(arguments.callee.name);
   const builder = new WasmModuleBuilder();