windows-x64-slowdebug build is broken by 8177708

jib > t:/workspace/open/test/hotspot/gtest/runtime/test_os_windows.cpp(61): error C2144: syntax error: 'bool' should be preceded by ')'
jib > t:/workspace/open/test/hotspot/gtest/runtime/test_os_windows.cpp(61): error C3861: 'FLAG_SET_CMDLINE': identifier not found
jib > t:/workspace/open/test/hotspot/gtest/runtime/test_os_windows.cpp(61): error C2144: syntax error: 'bool' should be preceded by ';'
jib > t:/workspace/open/test/hotspot/gtest/runtime/test_os_windows.cpp(61): error C2059: syntax error: ','
jib > t:/workspace/open/test/hotspot/gtest/runtime/test_os_windows.cpp(61): error C2059: syntax error: ')'
jib > t:/workspace/open/test/hotspot/gtest/runtime/test_os_windows.cpp(62): error C2144: syntax error: 'bool' should be preceded by ')'
jib > t:/workspace/open/test/hotspot/gtest/runtime/test_os_windows.cpp(62): error C3861: 'FLAG_SET_CMDLINE': identifier not found
jib > t:/workspace/open/test/hotspot/gtest/runtime/test_os_windows.cpp(62): error C2144: syntax error: 'bool' should be preceded by ';'
jib > t:/workspace/open/test/hotspot/gtest/runtime/test_os_windows.cpp(62): error C2059: syntax error: ','
jib > t:/workspace/open/test/hotspot/gtest/runtime/test_os_windows.cpp(62): error C2059: syntax error: ')'
jib > make[3]: *** [/cygdrive/t/workspace/build/windows-x64-slowdebug/hotspot/variant-server/libjvm/gtest/objs/test_os_windows.obj] Error 1
jib > make[3]: *** Waiting for unfinished jobs....
jib > lib/CompileGtest.gmk:58: recipe for target '/cygdrive/t/workspace/build/windows-x64-slowdebug/hotspot/variant-server/libjvm/gtest/objs/test_os_windows.obj' failed