[wasm] Fix asm.js semantics for divide by zero in WASM translation.

src/compiler/wasm-compiler.h

Index: src/compiler/wasm-compiler.h
diff --git a/src/compiler/wasm-compiler.h b/src/compiler/wasm-compiler.h
index c40bf82a4a7eab897855eb3152ac9dc601be339b..b5710b8e29ef1153c83868bd7494f61671c49f40 100644
--- a/src/compiler/wasm-compiler.h
+++ b/src/compiler/wasm-compiler.h
@@ -166,6 +166,7 @@ class WasmGraphBuilder {
 
   Node* BuildCCall(MachineSignature* sig, Node** args);
   Node* BuildWasmCall(wasm::FunctionSig* sig, Node** args);
+
   Node* BuildF32Neg(Node* input);
   Node* BuildF64Neg(Node* input);
   Node* BuildF32CopySign(Node* left, Node* right);
@@ -225,6 +226,11 @@ class WasmGraphBuilder {
   Node* BuildI64SConvertF64(Node* input);
   Node* BuildI64UConvertF64(Node* input);
 
+  Node* BuildI32DivS(Node* left, Node* right);
+  Node* BuildI32RemS(Node* left, Node* right);
+  Node* BuildI32DivU(Node* left, Node* right);
+  Node* BuildI32RemU(Node* left, Node* right);
+
   Node* BuildI64DivS(Node* left, Node* right);
   Node* BuildI64RemS(Node* left, Node* right);
   Node* BuildI64DivU(Node* left, Node* right);