[TableGen] Add list value test for switch(NFC) (#202327)

Author: tomershafir

llvm/test/TableGen/switch.td

@@ -58,13 +58,15 @@ def labeled_99 : Labeled<99>;
 // CHECK:   string_key = "v1";
 // CHECK:   bits_val = { 1, 1 };
 // CHECK:   single_bit = 1;
+// CHECK:   list_val = [7, 8, 9];
 def nonempty_caselist_default {
   string color = !switch(99, 1: "red", 2: "green", 3: "blue", "default");
   int age = !switch(99, 1: 20, 2: 30, 3: 40, 10);
   Rec rec_val = !switch(99, 1: rec_b, 2: rec_c, 3: rec_d, rec_a);
   string string_key = !switch("k99", "k1": "v2", "k2": "v3", "k3": "v4", "v1");
   bits<2> bits_val = !switch(99, 1: {0, 1}, 2: {1, 0}, {1, 1});
   bit single_bit = !switch(99, 1: !eq(0, 0), 2: !eq(0, 1), !eq(1, 1));
+  list<int> list_val = !switch(99, 1: [1, 2, 3], 2: [4, 5, 6], [7, 8, 9]);
 }
 
 // Non-empty case list, key matches a case key
@@ -75,13 +77,15 @@ def nonempty_caselist_default {
 // CHECK:   string_key = "v2";
 // CHECK:   bits_val = { 1, 0 };
 // CHECK:   single_bit = 0;
+// CHECK:   list_val = [4, 5, 6];
 def nonempty_caselist_match_case {
   string color = !switch(1,  1: "red", 2: "green", 3: "blue", "default");
   int age = !switch(2, 1: 20, 2: 30, 3: 40, 10);
   Rec rec_val = !switch(3, 1: rec_b, 2: rec_c, 3: rec_d, rec_a);
   string string_key = !switch("k1", "k1": "v2", "k2": "v3", "k3": "v4", "v1");
   bits<2> bits_val = !switch(2, 1: {0, 1}, 2: {1, 0}, {1, 1});
   bit single_bit = !switch(2, 1: !eq(0, 0), 2: !eq(0, 1), !eq(1, 1));
+  list<int> list_val = !switch(2, 1: [1, 2, 3], 2: [4, 5, 6], [7, 8, 9]);
 }
 
 // Partially unset values