Merge branch 'use-cpp-20' into v8_v12.7.224.18

Signed-off-by: Michael Warres <[email protected]>

Author: mpwarres

.bazelrc

@@ -81,9 +81,9 @@ build:zig-cc-linux-aarch64 --test_env=QEMU_LD_PREFIX=/usr/aarch64-linux-gnu/
 build --enable_platform_specific_config
 
 # Use C++20.
-build:linux --cxxopt=-std=c++20
-build:macos --cxxopt=-std=c++20
-build:windows --cxxopt="/std:c++20"
+build:linux --cxxopt=-std=c++20 --host_cxxopt=-std=c++20
+build:macos --cxxopt=-std=c++20 --host_cxxopt=-std=c++20
+build:windows --cxxopt="/std:c++20" --host_cxxopt="/std:c++20"
 
 # Enable symlinks and runfiles on Windows (enabled by default on other platforms).
 startup --windows_enable_symlinks