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

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

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <stdint.h>
 #include <stdlib.h>
 #include <string.h>
 
 #include "src/wasm/wasm-macro-gen.h"
 
@@ skipping 1071 matching lines @@
   CHECK_EQ(87, r.Call(1));
   CHECK_EQ(88, r.Call(2));
   CHECK_EQ(85, r.Call(3));
   CHECK_EQ(85, r.Call(4));
   CHECK_EQ(85, r.Call(5));
 }
 
 TEST(Run_Wasm_BrTable4) {
   for (int i = 0; i < 4; i++) {
     for (int t = 0; t < 4; t++) {
-      uint16_t cases[] = {0, 1, 2, 3};
+      uint32_t cases[] = {0, 1, 2, 3};
       cases[i] = t;
       byte code[] = {B2(B2(B2(B2(B1(WASM_BR_TABLE(
                                      WASM_GET_LOCAL(0), 3, BR_TARGET(cases[0]),
                                      BR_TARGET(cases[1]), BR_TARGET(cases[2]),
                                      BR_TARGET(cases[3]))),
                                  RET_I8(70)),
                               RET_I8(71)),
                            RET_I8(72)),
                         RET_I8(73)),
                      WASM_I8(75)};
 
       WasmRunner<int32_t> r(MachineType::Int32());
       r.Build(code, code + arraysize(code));
 
       for (int x = -3; x < 50; x++) {
         int index = (x > 3 || x < 0) ? 3 : x;
         int32_t expected = 70 + cases[index];
         CHECK_EQ(expected, r.Call(x));
       }
     }
   }
 }
 
 TEST(Run_Wasm_BrTable4x4) {
   for (byte a = 0; a < 4; a++) {
     for (byte b = 0; b < 4; b++) {
       for (byte c = 0; c < 4; c++) {
         for (byte d = 0; d < 4; d++) {
           for (int i = 0; i < 4; i++) {
-            uint16_t cases[] = {a, b, c, d};
+            uint32_t cases[] = {a, b, c, d};
             byte code[] = {
                 B2(B2(B2(B2(B1(WASM_BR_TABLE(
                                 WASM_GET_LOCAL(0), 3, BR_TARGET(cases[0]),
                                 BR_TARGET(cases[1]), BR_TARGET(cases[2]),
                                 BR_TARGET(cases[3]))),
                             RET_I8(50)),
                          RET_I8(51)),
                       RET_I8(52)),
                    RET_I8(53)),
                 WASM_I8(55)};
@@ skipping 2207 matching lines @@
 
 #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); }