Apply clang-tidy fixes for readability-simplify-boolean-expr to MLIR (NFC)

Author: joker-eph

mlir/lib/IR/AffineExpr.cpp

@@ -328,9 +328,7 @@ static bool isDivisibleBySymbol(AffineExpr expr, unsigned symbolPos,
          "unexpected opKind");
   switch (expr.getKind()) {
   case AffineExprKind::Constant:
-    if (expr.cast<AffineConstantExpr>().getValue())
-      return false;
-    return true;
+    return expr.cast<AffineConstantExpr>().getValue() == 0;
   case AffineExprKind::DimId:
     return false;
   case AffineExprKind::SymbolId:

mlir/test/lib/Dialect/Tensor/TestTensorTransforms.cpp

@@ -65,10 +65,7 @@ static void applyFoldConstantExtractSlicePatterns(FuncOp funcOp) {
 
         auto resultType = op.result().getType().cast<ShapedType>();
         constexpr int64_t kConstantFoldingMaxNumElements = 1024;
-        if (resultType.getNumElements() > kConstantFoldingMaxNumElements)
-          return false;
-
-        return true;
+        return resultType.getNumElements() <= kConstantFoldingMaxNumElements;
       };
 
   tensor::populateFoldConstantExtractSlicePatterns(patterns, controlFn);