UnitTests: use EXPECT_TRUE/EXPECT_FALSE (fixes warnings)

Using `EXPECT_EQ` with boolean literals can cause a warning in certain
versions of GCC. See https://github.com/google/googletest/issues/322

Fixes warnings:

```
../Source/UnitTests/Common/BitSetTest.cpp: In member function 'virtual void BitSet_Basics_Test::TestBody()':
../Source/UnitTests/Common/BitSetTest.cpp:15:165: error: converting 'false' to pointer type for argument 1 of 'char testing::internal::IsNullLiteralHelper(testing::internal::Secret*)' [-Werror=conversion-null]
../Source/UnitTests/Common/BitSetTest.cpp: In member function 'virtual void BitSet_BitGetSet_Test::TestBody()':
../Source/UnitTests/Common/BitSetTest.cpp:27:165: error: converting 'false' to pointer type for argument 1 of 'char testing::internal::IsNullLiteralHelper(testing::internal::Secret*)' [-Werror=conversion-null]
../Source/UnitTests/Common/StringUtilTest.cpp: In member function 'virtual void StringUtil_StringBeginsWith_Test::TestBody()':
../Source/UnitTests/Common/StringUtilTest.cpp:23:165: error: converting 'false' to pointer type for argument 1 of 'char testing::internal::IsNullLiteralHelper(testing::internal::Secret*)' [-Werror=conversion-null]
../Source/UnitTests/Common/StringUtilTest.cpp:25:165: error: converting 'false' to pointer type for argument 1 of 'char testing::internal::IsNullLiteralHelper(testing::internal::Secret*)' [-Werror=conversion-null]
../Source/UnitTests/Common/StringUtilTest.cpp:26:165: error: converting 'false' to pointer type for argument 1 of 'char testing::internal::IsNullLiteralHelper(testing::internal::Secret*)' [-Werror=conversion-null]
../Source/UnitTests/Common/StringUtilTest.cpp:27:165: error: converting 'false' to pointer type for argument 1 of 'char testing::internal::IsNullLiteralHelper(testing::internal::Secret*)' [-Werror=conversion-null]
../Source/UnitTests/Common/StringUtilTest.cpp: In member function 'virtual void StringUtil_StringEndsWith_Test::TestBody()':
../Source/UnitTests/Common/StringUtilTest.cpp:35:165: error: converting 'false' to pointer type for argument 1 of 'char testing::internal::IsNullLiteralHelper(testing::internal::Secret*)' [-Werror=conversion-null]
../Source/UnitTests/Common/StringUtilTest.cpp:37:165: error: converting 'false' to pointer type for argument 1 of 'char testing::internal::IsNullLiteralHelper(testing::internal::Secret*)' [-Werror=conversion-null]
../Source/UnitTests/Common/StringUtilTest.cpp:38:165: error: converting 'false' to pointer type for argument 1 of 'char testing::internal::IsNullLiteralHelper(testing::internal::Secret*)' [-Werror=conversion-null]
../Source/UnitTests/Common/StringUtilTest.cpp:39:165: error: converting 'false' to pointer type for argument 1 of 'char testing::internal::IsNullLiteralHelper(testing::internal::Secret*)' [-Werror=conversion-null]
c
```

1 files changed, 16 insertions, 16 deletions

diff --git a/Source/UnitTests/Common/StringUtilTest.cpp b/Source/UnitTests/Common/StringUtilTest.cpp
index 0a45c3b26a..98fdda1888 100644
--- a/Source/UnitTests/Common/StringUtilTest.cpp
+++ b/Source/UnitTests/Common/StringUtilTest.cpp
@@ -19,24 +19,24 @@ TEST(StringUtil, JoinStrings)
 
 TEST(StringUtil, StringBeginsWith)
 {
-  EXPECT_EQ(true, StringBeginsWith("abc", "a"));
-  EXPECT_EQ(false, StringBeginsWith("abc", "b"));
-  EXPECT_EQ(true, StringBeginsWith("abc", "ab"));
-  EXPECT_EQ(false, StringBeginsWith("a", "ab"));
-  EXPECT_EQ(false, StringBeginsWith("", "a"));
-  EXPECT_EQ(false, StringBeginsWith("", "ab"));
-  EXPECT_EQ(true, StringBeginsWith("abc", ""));
-  EXPECT_EQ(true, StringBeginsWith("", ""));
+  EXPECT_TRUE(StringBeginsWith("abc", "a"));
+  EXPECT_FALSE(StringBeginsWith("abc", "b"));
+  EXPECT_TRUE(StringBeginsWith("abc", "ab"));
+  EXPECT_FALSE(StringBeginsWith("a", "ab"));
+  EXPECT_FALSE(StringBeginsWith("", "a"));
+  EXPECT_FALSE(StringBeginsWith("", "ab"));
+  EXPECT_TRUE(StringBeginsWith("abc", ""));
+  EXPECT_TRUE(StringBeginsWith("", ""));
 }
 
 TEST(StringUtil, StringEndsWith)
 {
-  EXPECT_EQ(true, StringEndsWith("abc", "c"));
-  EXPECT_EQ(false, StringEndsWith("abc", "b"));
-  EXPECT_EQ(true, StringEndsWith("abc", "bc"));
-  EXPECT_EQ(false, StringEndsWith("a", "ab"));
-  EXPECT_EQ(false, StringEndsWith("", "a"));
-  EXPECT_EQ(false, StringEndsWith("", "ab"));
-  EXPECT_EQ(true, StringEndsWith("abc", ""));
-  EXPECT_EQ(true, StringEndsWith("", ""));
+  EXPECT_TRUE(StringEndsWith("abc", "c"));
+  EXPECT_FALSE(StringEndsWith("abc", "b"));
+  EXPECT_TRUE(StringEndsWith("abc", "bc"));
+  EXPECT_FALSE(StringEndsWith("a", "ab"));
+  EXPECT_FALSE(StringEndsWith("", "a"));
+  EXPECT_FALSE(StringEndsWith("", "ab"));
+  EXPECT_TRUE(StringEndsWith("abc", ""));
+  EXPECT_TRUE(StringEndsWith("", ""));
 }