[wasm] Fixed float-to-int32 conversion to match the spec.

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 9670edaf82c4a1969507fdd8135a5bda847bb21c..1a17a832e4e94c18c22b774aea283a698114d473 100644
--- a/src/compiler/wasm-compiler.h
+++ b/src/compiler/wasm-compiler.h
@@ -168,6 +168,10 @@ class WasmGraphBuilder {
   Node* BuildF32Max(Node* left, Node* right);
   Node* BuildF64Min(Node* left, Node* right);
   Node* BuildF64Max(Node* left, Node* right);
+  Node* BuildI32SConvertF32(Node* input);
+  Node* BuildI32SConvertF64(Node* input);
+  Node* BuildI32UConvertF32(Node* input);
+  Node* BuildI32UConvertF64(Node* input);
   Node* BuildI32Ctz(Node* input);
   Node* BuildI32Popcnt(Node* input);
   Node* BuildI64Ctz(Node* input);