Subzero, Wasm: Dynamically reallocate read buffer. Runtime improvements.

src/WasmTranslator.h

Index: src/WasmTranslator.h
diff --git a/src/WasmTranslator.h b/src/WasmTranslator.h
index 7b023b30ec8da4c274ebfdff5ec2caee3c8f38e1..dbc594a96c736fca061a0c4bb0454ce66922a652 100644
--- a/src/WasmTranslator.h
+++ b/src/WasmTranslator.h
@@ -70,8 +70,7 @@ public:
                     v8::internal::wasm::FunctionBody &Body);
 
 private:
-  std::unique_ptr<uint8_t[]> Buffer;
-  SizeT BufferSize;
+  std::vector<uint8_t> Buffer;
 };
 }