tsan: test: Initialize all fields of Params struct

[melver]

Summary

Some compilers started complaining about the test:

tsan_trace_test.cpp:128:21: error: missing field 'type' initializer

Fix it by initializing all 5 fields, even though the type field will be
reset in the for loop.

[anirudhp]

Awesome! Thanks!

compiler-rt/lib/tsan/tests/unit/tsan_trace_test.cpp

static void *Func(void *arg) {
         CHECK_EQ(stk.size, 2);
         CHECK_EQ(stk.trace[0], 0x1000);
         CHECK_EQ(stk.trace[1], params->type ? 0x2000000 : 0x2000);
       }
       return nullptr;
     }
   };
   Thread::Params tests[] = {
-      {1, 0, 1, true},  {4, 0, 2, true},
-      {4, 2, 2, true},  {8, 3, 1, true},
-      {2, 1, 1, true},  {1, 1, 1, false},
-      {8, 5, 4, false}, {4, static_cast<uptr>(-1l), 4, false},
+      {1, 0, 1, true, 0},  {4, 0, 2, true, 0},
+      {4, 2, 2, true, 0},  {8, 3, 1, true, 0},
+      {2, 1, 1, true, 0},  {1, 1, 1, false, 0},
+      {8, 5, 4, false, 0}, {4, static_cast<uptr>(-1l), 4, false, 0},
   };
   for (auto params : tests) {
     for (params.type = 0; params.type < 3; params.type++)
       run_in_thread(Thread::Func, &params);
   }
 }
 
 TEST(Trace, RestoreMutexLock) {