S390: [wasm] Fixed float-to-int conversion tests.

src/compiler/s390/instruction-selector-s390.cc

Index: src/compiler/s390/instruction-selector-s390.cc
diff --git a/src/compiler/s390/instruction-selector-s390.cc b/src/compiler/s390/instruction-selector-s390.cc
index 39fce6f87df877e59a31a1c96fe4630a373fd420..8a4af5e65c5caeff7e12e4390401cb7192cc412a 100644
--- a/src/compiler/s390/instruction-selector-s390.cc
+++ b/src/compiler/s390/instruction-selector-s390.cc
@@ -1006,6 +1006,10 @@ void InstructionSelector::VisitChangeFloat64ToUint32(Node* node) {
   VisitRR(this, kS390_DoubleToUint32, node);
 }
 
+void InstructionSelector::VisitTruncateFloat64ToUint32(Node* node) {
+  VisitRR(this, kS390_DoubleToUint32, node);
+}
+
 #if V8_TARGET_ARCH_S390X
 void InstructionSelector::VisitTryTruncateFloat32ToInt64(Node* node) {
   VisitTryTruncateDouble(this, kS390_Float32ToInt64, node);