clang: fix `-Wsign-conversion` errors

Cast some values as their unsigned equivalents or `size_t` to match the
parameter type used for the template object under test. Also, provide
UInt32 equivalent delegate methods for some callers (with
int-equivalents for backwards compatibility).

This closes #2146.

Signed-off-by: Enji Cooper <yaneurabeya@gmail.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/googletest/test/googletest-death-test-test.cc b/googletest/test/googletest-death-test-test.cc
index b8645414..272b9c36 100644
--- a/googletest/test/googletest-death-test-test.cc
+++ b/googletest/test/googletest-death-test-test.cc
@@ -884,10 +884,12 @@ class MockDeathTestFactory : public DeathTestFactory {
   int AssumeRoleCalls() const { return assume_role_calls_; }
   int WaitCalls() const { return wait_calls_; }
   size_t PassedCalls() const { return passed_args_.size(); }
-  bool PassedArgument(int n) const { return passed_args_[n]; }
+  bool PassedArgument(int n) const {
+    return passed_args_[static_cast<size_t>(n)];
+  }
   size_t AbortCalls() const { return abort_args_.size(); }
   DeathTest::AbortReason AbortArgument(int n) const {
-    return abort_args_[n];
+    return abort_args_[static_cast<size_t>(n)];
   }
   bool TestDeleted() const { return test_deleted_; }