feat(preprocessor): add file-local conditional switches

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/tests/iii/preprocessor-lines/case.json b/tests/iii/preprocessor-lines/case.json
new file mode 100644
index 0000000..c84bc94
--- /dev/null
+++ b/tests/iii/preprocessor-lines/case.json
@@ -0,0 +1,8 @@
+{
+  "errors": [
+    {
+      "reason": "Unknown variable name Unknown",
+      "line": 7
+    }
+  ]
+}