Add /bigobj parameter to cctest to make MSVS happy.

test/cctest/cctest.gyp

Index: test/cctest/cctest.gyp
diff --git a/test/cctest/cctest.gyp b/test/cctest/cctest.gyp
index 5d0cab3e9869364455d6484e201a0f3533097a65..5f2dfa5ac56e46a73f977bb7bbf0767b3400ea8c 100644
--- a/test/cctest/cctest.gyp
+++ b/test/cctest/cctest.gyp
@@ -134,6 +134,12 @@
           'sources': [
             'test-platform-win32.cc',
           ],
+          'msvs_settings': {
+            'VCCLCompilerTool': {
+              # MSVS wants this for gay-{precision,shortest}.cc.
+              'AdditionalOptions': ['/bigobj'],
+            },
+          },
         }],
         ['component=="shared_library"', {
           # cctest can't be built against a shared library, so we need to