win: Suppress size loss warnings

common.gypi

@@ -192,6 +192,7 @@
       4005,  # (node.h) macro redefinition
       4189,  # local variable is initialized but not referenced
       4201,  # (uv.h) nameless struct/union
+      4267,  # conversion from 'size_t' to 'int', possible loss of data
       4503,  # decorated name length exceeded, name was truncated
       4800,  # (v8.h) forcing value to bool 'true' or 'false'
       4819,  # The file contains a character that cannot be represented in the current code page