Fix WASM build (shader-slang#5925)

There is no objcopy and strip for WASM, so disable debug info stripping.

This closes shader-slang#5924.

Author: aleino-nv

CMakePresets.json

@@ -22,6 +22,7 @@
       "binaryDir": "${sourceDir}/build.em",
       "cacheVariables": {
         "SLANG_SLANG_LLVM_FLAVOR": "DISABLE",
+        "SLANG_ENABLE_SPLIT_DEBUG_INFO": "OFF",
         "CMAKE_C_FLAGS_INIT": "-fwasm-exceptions -Os",
         "CMAKE_CXX_FLAGS_INIT": "-fwasm-exceptions -Os",
         "CMAKE_EXE_LINKER_FLAGS": "-sASSERTIONS -sALLOW_MEMORY_GROWTH -fwasm-exceptions --export=__cpp_exception"