[wasm] Add utilities to print out WASM ast directly from the bytes.

test/cctest/wasm/test-run-wasm.cc

Index: test/cctest/wasm/test-run-wasm.cc
diff --git a/test/cctest/wasm/test-run-wasm.cc b/test/cctest/wasm/test-run-wasm.cc
index 4873f570b72eecb66b367cebca7e68c7670a0d8d..14636bb5f007a2f0fecfd5ec90fd04ae4b04c380 100644
--- a/test/cctest/wasm/test-run-wasm.cc
+++ b/test/cctest/wasm/test-run-wasm.cc
@@ -3275,4 +3275,49 @@ TEST(Run_Wasm_F32CopySign) {
   }
 }
 
+
+#endif
+
+
+void CompileCallIndirectMany(LocalType param) {
+  // Make sure we don't run out of registers when compiling indirect calls
+  // with many many parameters.
+  TestSignatures sigs;
+  for (byte num_params = 0; num_params < 40; num_params++) {
+    Zone zone;
+    HandleScope scope(CcTest::InitIsolateOnce());
+    TestingModule module;
+    FunctionSig* sig = sigs.many(&zone, kAstStmt, param, num_params);
+
+    module.AddSignature(sig);
+    module.AddSignature(sig);
+    module.AddIndirectFunctionTable(nullptr, 0);
+
+    WasmFunctionCompiler t(sig);
+    t.env.module = &module;
+
+    std::vector<byte> code;
+    ADD_CODE(code, kExprCallIndirect, 1);
+    ADD_CODE(code, kExprI8Const, 0);
+    for (byte p = 0; p < num_params; p++) {
+      ADD_CODE(code, kExprGetLocal, p);
+    }
+
+    t.Build(&code[0], &code[0] + code.size());
+    t.Compile(&module);
+  }
+}
+
+
+TEST(Compile_Wasm_CallIndirect_Many_i32) { CompileCallIndirectMany(kAstI32); }
+
+
+#if WASM_64
+TEST(Compile_Wasm_CallIndirect_Many_i64) { CompileCallIndirectMany(kAstI64); }
 #endif
+
+
+TEST(Compile_Wasm_CallIndirect_Many_f32) { CompileCallIndirectMany(kAstF32); }
+
+
+TEST(Compile_Wasm_CallIndirect_Many_f64) { CompileCallIndirectMany(kAstF64); }