Temporarily disable uint32 mode for comparisons

src/hydrogen-uint32-analysis.cc

Index: src/hydrogen-uint32-analysis.cc
diff --git a/src/hydrogen-uint32-analysis.cc b/src/hydrogen-uint32-analysis.cc
index 7616f3d46b61a6416a6bc6917b4ed56158b76032..ce450a1de84701d00d21294f27b1d664e6b93363 100644
--- a/src/hydrogen-uint32-analysis.cc
+++ b/src/hydrogen-uint32-analysis.cc
@@ -62,6 +62,7 @@ bool HUint32AnalysisPhase::IsSafeUint32Use(HValue* val, HValue* use) {
       }
     }
   } else if (use->IsCompareNumericAndBranch()) {
+    return false;  // TODO(svenpanne/3380): Fix and re-enable!
     HCompareNumericAndBranch* c = HCompareNumericAndBranch::cast(use);
     return IsUint32Operation(c->left()) && IsUint32Operation(c->right());
   }