Add MinidumpMiscInfoWriter and its test

minidump/minidump_system_info_writer_test.cc

Index: minidump/minidump_system_info_writer_test.cc
diff --git a/minidump/minidump_system_info_writer_test.cc b/minidump/minidump_system_info_writer_test.cc
index 27963a20e35d213760c151dcf91756d4c8e91344..ce154332becab125d2d6d588f7acad89f229e244 100644
--- a/minidump/minidump_system_info_writer_test.cc
+++ b/minidump/minidump_system_info_writer_test.cc
@@ -26,6 +26,7 @@
 namespace {
 
 using namespace crashpad;
+using namespace testing;
 
 void GetSystemInfoStream(const std::string& file_contents,
                          size_t csd_version_length,
@@ -92,6 +93,9 @@ TEST(MinidumpSystemInfoWriter, Empty) {
   const MINIDUMP_STRING* csd_version;
 
   GetSystemInfoStream(file_writer.string(), 0, &system_info, &csd_version);
+  if (Test::HasFatalFailure()) {
+    return;
+  }
 
   EXPECT_EQ(kMinidumpCPUArchitectureUnknown,
             system_info->ProcessorArchitecture);
@@ -163,6 +167,9 @@ TEST(MinidumpSystemInfoWriter, X86_Win) {
 
   GetSystemInfoStream(
       file_writer.string(), strlen(kCSDVersion), &system_info, &csd_version);
+  if (Test::HasFatalFailure()) {
+    return;
+  }
 
   EXPECT_EQ(kCPUArchitecture, system_info->ProcessorArchitecture);
   EXPECT_EQ(kCPULevel, system_info->ProcessorLevel);
@@ -223,6 +230,9 @@ TEST(MinidumpSystemInfoWriter, X86_64_Mac) {
 
   GetSystemInfoStream(
       file_writer.string(), strlen(kCSDVersion), &system_info, &csd_version);
+  if (Test::HasFatalFailure()) {
+    return;
+  }
 
   EXPECT_EQ(kCPUArchitecture, system_info->ProcessorArchitecture);
   EXPECT_EQ(kCPULevel, system_info->ProcessorLevel);
@@ -264,6 +274,9 @@ TEST(MinidumpSystemInfoWriter, X86_CPUVendorFromRegisters) {
   const MINIDUMP_STRING* csd_version;
 
   GetSystemInfoStream(file_writer.string(), 0, &system_info, &csd_version);
+  if (Test::HasFatalFailure()) {
+    return;
+  }
 
   EXPECT_EQ(kCPUArchitecture, system_info->ProcessorArchitecture);
   EXPECT_EQ(0u, system_info->ProcessorLevel);