[wasm] Support undefined indirect table entries, behind a flag.

test/mjsunit/wasm/default-func-call.js

Index: test/mjsunit/wasm/default-func-call.js
diff --git a/test/mjsunit/wasm/indirect-calls.js b/test/mjsunit/wasm/default-func-call.js
similarity index 68%
copy from test/mjsunit/wasm/indirect-calls.js
copy to test/mjsunit/wasm/default-func-call.js
index 80bee412e028541e3b54ba7a175a512cb8293e77..1cf519e9a324f8aaaab4d71ef9eb32e21fec9ab2 100644
--- a/test/mjsunit/wasm/indirect-calls.js
+++ b/test/mjsunit/wasm/default-func-call.js
@@ -3,6 +3,7 @@
 // found in the LICENSE file.
 
 // Flags: --expose-wasm
+// Flags: --wasm-jit-prototype
 
 load("test/mjsunit/wasm/wasm-constants.js");
 load("test/mjsunit/wasm/wasm-module-builder.js");
@@ -42,8 +43,12 @@ assertFalse(module === 0);
 assertEquals("object", typeof module.exports);
 assertEquals("function", typeof module.exports.main);
 
-assertEquals(5, module.exports.main(1, 12, 7));
-assertEquals(19, module.exports.main(0, 12, 7));
-
-assertTraps(kTrapFuncSigMismatch, "module.exports.main(2, 12, 33)");
-assertTraps(kTrapFuncInvalid, "module.exports.main(3, 12, 33)");
+// Check that the appropriate trap is generated
+assertTraps(kTrapFuncInvalid, "module.exports.main(-1,15,16)");
+assertTraps(kTrapFuncInvalid, "module.exports.main(100000,15,16)");
+assertTraps(kTrapFuncInvalid, "module.exports.main(512,15,16)");
+assertTraps(kTrapFuncInvalid, "module.exports.main(513,15,16)");
+assertTraps(kTrapDefaultFuncCall, "module.exports.main(511,15,16)");
+assertTraps(kTrapDefaultFuncCall, "module.exports.main(4,15,16)");
+assertTraps(kTrapDefaultFuncCall, "module.exports.main(3,15,16)");
+assertTraps(kTrapFuncSigMismatch, "module.exports.main(2,15,16)");