[Wasm] Convert many of the fixed-size values to LEB128.

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

Index: test/unittests/wasm/module-decoder-unittest.cc
diff --git a/test/unittests/wasm/module-decoder-unittest.cc b/test/unittests/wasm/module-decoder-unittest.cc
index c32e873ef8dde2d8e4d78148165445727df0bd8e..9eaaf16cc30389f2b74e0e37889dbb889d8e5ae7 100644
--- a/test/unittests/wasm/module-decoder-unittest.cc
+++ b/test/unittests/wasm/module-decoder-unittest.cc
@@ -682,10 +682,7 @@ TEST_F(WasmModuleVerifyTest, DataSegmentWithInvalidDest) {
 
 
 // To make below tests for indirect calls much shorter.
-#define FUNCTION(sig_index, external)                \
-  kDeclFunctionImport, static_cast<byte>(sig_index), \
-      static_cast<byte>(sig_index >> 8)
-
+#define FUNCTION(sig_index, external) kDeclFunctionImport, SIG_INDEX(sig_index)
 
 TEST_F(WasmModuleVerifyTest, OneIndirectFunction) {
   static const byte data[] = {
@@ -694,7 +691,7 @@ TEST_F(WasmModuleVerifyTest, OneIndirectFunction) {
       // func#0 ------------------------------------------------------
       kDeclFunctions, 1, FUNCTION(0, 0),
       // indirect table ----------------------------------------------
-      kDeclFunctionTable, 1, 0, 0};
+      kDeclFunctionTable, 1, U32V_1(0)};
 
   ModuleResult result = DecodeModule(data, data + arraysize(data));
   EXPECT_TRUE(result.ok());
@@ -720,14 +717,14 @@ TEST_F(WasmModuleVerifyTest, MultipleIndirectFunctions) {
       FUNCTION(1, 1),                     // --
       // indirect table ----------------------------------------------
       kDeclFunctionTable, 8,
-      U16_LE(0),  // --
-      U16_LE(1),  // --
-      U16_LE(2),  // --
-      U16_LE(3),  // --
-      U16_LE(0),  // --
-      U16_LE(1),  // --
-      U16_LE(2),  // --
-      U16_LE(3),  // --
+      U32V_1(0),  // --
+      U32V_1(1),  // --
+      U32V_1(2),  // --
+      U32V_1(3),  // --
+      U32V_1(0),  // --
+      U32V_1(1),  // --
+      U32V_1(2),  // --
+      U32V_1(3),  // --
   };
 
   ModuleResult result = DecodeModule(data, data + arraysize(data));
@@ -1088,7 +1085,7 @@ TEST_F(WasmModuleVerifyTest, ImportTable_one_sig) {
       VOID_VOID_SIG,
       kDeclImportTable,
       1,               // --
-      SIG_INDEX(0),    // sig index
+      U32V_1(0),       // sig index
       NAME_OFFSET(1),  // module name
       NAME_OFFSET(1)   // function name
   };