build: spell -fno-exceptions for MSVC

We did not disable exceptions when building with cl, do so like we do
with the GCC style driver.

Author: compnerd

src/CMakeLists.txt

@@ -174,7 +174,9 @@ if(WIN32)
                              PRIVATE
                                _CRT_NONSTDC_NO_WARNINGS)
 endif()
-if(NOT "${CMAKE_C_SIMULATE_ID}" STREQUAL "MSVC")
+if("${CMAKE_C_SIMULATE_ID}" STREQUAL "MSVC")
+  target_compile_options(dispatch PRIVATE /EHs-c-)
+else()
   target_compile_options(dispatch PRIVATE -fno-exceptions)
 endif()
 if(DISPATCH_ENABLE_ASSERTS)