Match the actual expectation of a variable size in a leaflist

tree/treeplayer/test/basic.cxx

@@ -13,8 +13,8 @@ TTree* MakeTree() {
    double x[3]{};
    float z = 0.;
    struct {
-      unsigned int ny;
-      int* y = nullptr;
+      unsigned int ny = 100;
+      int y[100];
    } yData;
    std::string str;
    Double32_t Double32 = 12.;
@@ -31,7 +31,6 @@ TTree* MakeTree() {
 
    x[1] = 42.;
    yData.ny = 42;
-   yData.y = new int[42]{};
    yData.y[0] = 17;
    str = "first";
    tree->Fill();
@@ -48,8 +47,6 @@ TTree* MakeTree() {
       tree->Fill();
    }
 
-   delete [] yData.y;
-
    tree->ResetBranchAddresses();
 
    return tree;