Swift: disable stack protection in extractor to fix Linux crash

The FunctionStackProtection SIL pass crashes on Linux when processing
standard library functions like withUnsafePointer(to:_:). This is a
known upstream Swift compiler bug (swiftlang/swift#69768).

The extractor does not need stack protection since it only extracts
semantic information from the AST and never produces executable code.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

swift/extractor/main.cpp

@@ -81,6 +81,9 @@ static void turnOffSilVerifications(swift::SILOptions& options) {
   options.VerifyExclusivity = false;
   options.VerifyNone = true;
   options.VerifySILOwnership = false;
+  // Stack protection is not needed for extraction and causes a crash on Linux
+  // (https://github.com/swiftlang/swift/issues/69768)
+  options.EnableStackProtection = false;
 }
 
 codeql::TrapDomain invocationTrapDomain(codeql::SwiftExtractorState& state);

swift/ql/test/extractor-tests/expressions/expressions.swift

@@ -187,3 +187,5 @@ func makeTuple<each T>(_ t: repeat each T) -> (repeat each T) {
 }
 
 let _ = makeTuple("A", 2)
+
+//codeql-extractor-options: -disable-stack-protector