Add more struct tests with comments

Signed-off-by: Mateusz Sierszulski <msierszulski@antmicro.com>

verilog/formatting/formatter_test.cc

diff --git a/verilog/formatting/formatter_test.cc b/verilog/formatting/formatter_test.cc
index e617479..e3f08f2 100644
--- a/verilog/formatting/formatter_test.cc
+++ b/verilog/formatting/formatter_test.cc
@@ -8084,6 +8084,19 @@
      "  generic_type_name_t third  // c\n"
      ";\n"
      "} type_t;\n"},
+    {"struct {logic test1; // c\n"
+     "logic test2;} test3;\n",
+     "struct {\n"
+     "  logic test1;  // c\n"
+     "  logic test2;\n"
+     "} test3;\n"},
+    {"struct {\n"
+     "  /* t */ logic test1; /* t */\n"
+     "/* t */ logic test2; }test3;\n",
+     "struct {\n"
+     "  /* t */ logic test1;  /* t */\n"
+     "  /* t */ logic test2;\n"
+     "} test3;\n"},
     // Continuation comment alignment
     {"`define BAR 1 // A\n"
      "module foo(); // B\n"