Revert of [wasm] Indirect calls without function table cause validation errors.

test/unittests/wasm/ast-decoder-unittest.cc

Index: test/unittests/wasm/ast-decoder-unittest.cc
diff --git a/test/unittests/wasm/ast-decoder-unittest.cc b/test/unittests/wasm/ast-decoder-unittest.cc
index f73264168b3b8ab2dd6e121d4608245b17b44500..070767e7188a71fc9baeb9cbb813467e02738830 100644
--- a/test/unittests/wasm/ast-decoder-unittest.cc
+++ b/test/unittests/wasm/ast-decoder-unittest.cc
@@ -1311,11 +1311,6 @@
     return result;
   }
 
-  void InitializeFunctionTable() {
-    mod.function_tables.push_back(
-        {0, 0, true, std::vector<int32_t>(), false, false, SignatureMap()});
-  }
-
  private:
   WasmModule mod;
 };
@@ -1426,7 +1421,6 @@
 TEST_F(AstDecoderTest, SimpleIndirectCalls) {
   FunctionSig* sig = sigs.i_i();
   TestModuleEnv module_env;
-  module_env.InitializeFunctionTable();
   module = &module_env;
 
   byte f0 = module_env.AddSignature(sigs.i_v());
@@ -1442,7 +1436,6 @@
 TEST_F(AstDecoderTest, IndirectCallsOutOfBounds) {
   FunctionSig* sig = sigs.i_i();
   TestModuleEnv module_env;
-  module_env.InitializeFunctionTable();
   module = &module_env;
 
   EXPECT_FAILURE_S(sig, WASM_CALL_INDIRECT0(0, WASM_ZERO));
@@ -1459,7 +1452,6 @@
 TEST_F(AstDecoderTest, IndirectCallsWithMismatchedSigs3) {
   FunctionSig* sig = sigs.i_i();
   TestModuleEnv module_env;
-  module_env.InitializeFunctionTable();
   module = &module_env;
 
   byte f0 = module_env.AddFunction(sigs.i_f());
@@ -1477,21 +1469,6 @@
   EXPECT_FAILURE_S(sig, WASM_CALL_INDIRECT1(f1, WASM_ZERO, WASM_I8(16)));
   EXPECT_FAILURE_S(sig, WASM_CALL_INDIRECT1(f1, WASM_ZERO, WASM_I64V_1(16)));
   EXPECT_FAILURE_S(sig, WASM_CALL_INDIRECT1(f1, WASM_ZERO, WASM_F32(17.6)));
-}
-
-TEST_F(AstDecoderTest, IndirectCallsWithoutTableCrash) {
-  FunctionSig* sig = sigs.i_i();
-  TestModuleEnv module_env;
-  module = &module_env;
-
-  byte f0 = module_env.AddSignature(sigs.i_v());
-  byte f1 = module_env.AddSignature(sigs.i_i());
-  byte f2 = module_env.AddSignature(sigs.i_ii());
-
-  EXPECT_FAILURE_S(sig, WASM_CALL_INDIRECT0(f0, WASM_ZERO));
-  EXPECT_FAILURE_S(sig, WASM_CALL_INDIRECT1(f1, WASM_ZERO, WASM_I8(22)));
-  EXPECT_FAILURE_S(
-      sig, WASM_CALL_INDIRECT2(f2, WASM_ZERO, WASM_I8(32), WASM_I8(72)));
 }
 
 TEST_F(AstDecoderTest, SimpleImportCalls) {