[cmake] Improve comment describing the C4245 warning. NFCI.

llvm-svn: 370772

diff --git a/llvm/cmake/modules/HandleLLVMOptions.cmake b/llvm/cmake/modules/HandleLLVMOptions.cmake
index e55bcab..fa92b74 100644 (file)
--- a/llvm/cmake/modules/HandleLLVMOptions.cmake
+++ b/llvm/cmake/modules/HandleLLVMOptions.cmake
@@ -523,7 +523,7 @@ if (MSVC)
       -wd4610 # Suppress '<class> can never be instantiated'
       -wd4510 # Suppress 'default constructor could not be generated'
       -wd4702 # Suppress 'unreachable code'
-      -wd4245 # Suppress 'signed/unsigned mismatch'
+      -wd4245 # Suppress ''conversion' : conversion from 'type1' to 'type2', signed/unsigned mismatch'
       -wd4706 # Suppress 'assignment within conditional expression'
       -wd4310 # Suppress 'cast truncates constant value'
       -wd4701 # Suppress 'potentially uninitialized local variable'