Merged: [wasm] Accept version 0x1 binaries.

src/wasm/wasm-module.h

Index: src/wasm/wasm-module.h
diff --git a/src/wasm/wasm-module.h b/src/wasm/wasm-module.h
index c317c2c3060a304501ccd5df09cb68d99f1e9a1c..3f058a1dd7740ff0ab141c90304ade46a28581ae 100644
--- a/src/wasm/wasm-module.h
+++ b/src/wasm/wasm-module.h
@@ -35,7 +35,9 @@ namespace wasm {
 class ErrorThrower;
 
 const uint32_t kWasmMagic = 0x6d736100;
-const uint32_t kWasmVersion = 0x0d;
+const uint32_t kWasmVersion = 0x01;
+// Legacy version supported for short transitionary period.
+const uint32_t kWasmLegacyVersion = 0x0d;
 
 const uint8_t kWasmFunctionTypeForm = 0x60;
 const uint8_t kWasmAnyFunctionTypeForm = 0x70;