message: Avoid sign-compare warning
diff: @@ -60,7 +60,7 @@ TEST(StructsGenTest, ClassofExtraFalse) {
  mlir::MLIRContext context;
  mlir::DictionaryAttr structAttr = getTestStruct(&context);
  auto expectedValues = structAttr.getValue();
  - ASSERT_EQ(expectedValues.size(), 3);
  + ASSERT_EQ(expectedValues.size(), 3u);
  // Copy the set of named attributes.
  llvm::SmallVector<mlir::NamedAttribute, 5> newValues(expectedValues.begin(),
  @@ -82,7 +82,7 @@ TEST(StructsGenTest, ClassofBadNameFalse) {
  mlir::MLIRContext context;
  mlir::DictionaryAttr structAttr = getTestStruct(&context);
  auto expectedValues = structAttr.getValue();
  - ASSERT_EQ(expectedValues.size(), 3);
  + ASSERT_EQ(expectedValues.size(), 3u);
  // Create a copy of all but the first NamedAttributes.
  llvm::SmallVector<mlir::NamedAttribute, 4> newValues(
  @@ -103,7 +103,7 @@ TEST(StructsGenTest, ClassofMissingFalse) {
  mlir::MLIRContext context;
  mlir::DictionaryAttr structAttr = getTestStruct(&context);
  auto expectedValues = structAttr.getValue();
  - ASSERT_EQ(expectedValues.size(), 3);
  + ASSERT_EQ(expectedValues.size(), 3u);
  // Copy a subset of the structures Named Attributes.
  llvm::SmallVector<mlir::NamedAttribute, 3> newValues(
  