Apply windows clang-runtime workaround on clang-20 too

Author: twistedfall

binding-generator/src/generator.rs

@@ -361,14 +361,22 @@ pub struct Generator {
 
 impl Drop for Generator {
 	fn drop(&mut self) {
-		if !(cfg!(windows) && cfg!(feature = "clang-runtime") && clang::get_version().contains(" 19.")) {
-			// `clang` has an issue on Windows when running with `runtime` feature and clang-19:
+		const BAD_VERSIONS: [&str; 2] = [" 19.", " 20."];
+		if !(cfg!(windows)
+			&& cfg!(feature = "clang-runtime")
+			&& BAD_VERSIONS
+				.iter()
+				.any(|bad_version| clang::get_version().contains(bad_version)))
+		{
+			// `clang` has an issue on Windows when running with `runtime` feature and clang-19+:
 			// https://github.com/KyleMayes/clang-rs/issues/63
 			// So we avoid dropping clang in that case as a workaround.
 			// `clang::get_version()` is string like "Apple clang version 15.0.0 (clang-1500.1.0.2.5)"
 			unsafe {
 				ManuallyDrop::drop(&mut self.clang);
 			}
+		} else {
+			eprintln!("=== Windows + clang-runtime + clang version is known to be problematic, skipping drop of Generator");
 		}
 	}
 }

ci/install.sh

@@ -31,7 +31,7 @@ elif [[ "$os_family" == "macOS" ]]; then
 		"$ci_dir/install-macos-framework.sh"
 	fi
 elif [[ "$os_family" == "Windows" ]]; then
-	export CHOCO_LLVM_VERSION=19.1.5 # https://community.chocolatey.org/packages/llvm#versionhistory
+	export CHOCO_LLVM_VERSION=20.1.0 # https://community.chocolatey.org/packages/llvm#versionhistory
 	if [[ "${VCPKG_VERSION:-}" != "" ]]; then # vcpkg build
 		"$ci_dir/install-windows-vcpkg.sh"
 	else # chocolatey build