[wasm] Implement decoding of i32v values

test/unittests/wasm/decoder-unittest.cc

Index: test/unittests/wasm/decoder-unittest.cc
diff --git a/test/unittests/wasm/decoder-unittest.cc b/test/unittests/wasm/decoder-unittest.cc
index e298f0ba9f74acf04c5cb6bed30881fb932afd4c..d1580c3a7d9d99dfb08dc18eb88dece23c334468 100644
--- a/test/unittests/wasm/decoder-unittest.cc
+++ b/test/unittests/wasm/decoder-unittest.cc
@@ -27,6 +27,10 @@ class DecoderTest : public TestWithZone {
     EXPECT_EQ(expected,                                                \
               decoder.checked_read_u32v(decoder.start(), 0, &length)); \
     EXPECT_EQ(expected_length, length);                                \
+    EXPECT_EQ(data, decoder.pc());                                     \
+    EXPECT_TRUE(decoder.ok());                                         \
+    EXPECT_EQ(expected, decoder.consume_u32v());                       \
+    EXPECT_EQ(data + expected_length, decoder.pc());                   \
   } while (false)
 
 #define CHECK_INT32V_INLINE(expected, expected_length, ...)            \
@@ -37,6 +41,10 @@ class DecoderTest : public TestWithZone {
     EXPECT_EQ(expected,                                                \
               decoder.checked_read_i32v(decoder.start(), 0, &length)); \
     EXPECT_EQ(expected_length, length);                                \
+    EXPECT_EQ(data, decoder.pc());                                     \
+    EXPECT_TRUE(decoder.ok());                                         \
+    EXPECT_EQ(expected, decoder.consume_i32v());                       \
+    EXPECT_EQ(data + expected_length, decoder.pc());                   \
   } while (false)
 
 #define CHECK_UINT64V_INLINE(expected, expected_length, ...)           \