Swift: extend the frontend observer

Author: AlexDenisov

swift/extractor/main.cpp

@@ -85,6 +85,7 @@ class Observer : public swift::FrontendObserver {
 
   void parsedArgs(swift::CompilerInvocation& invocation) override {
     auto& options = invocation.getFrontendOptions();
+    options.KeepASTContext = true;
     lockOutputSwiftModuleTraps(state, options);
     processFrontendOptions(state, options);
   }
@@ -93,7 +94,7 @@ class Observer : public swift::FrontendObserver {
     instance.addDiagnosticConsumer(&diagConsumer);
   }
 
-  void performedSemanticAnalysis(swift::CompilerInstance& compiler) override {
+  void performedCompilation(swift::CompilerInstance& compiler) override {
     codeql::extractSwiftFiles(state, compiler);
     codeql::extractSwiftInvocation(state, compiler, invocationTrap);
     codeql::extractExtractLazyDeclarations(state, compiler);

swift/third_party/load.bzl

@@ -4,11 +4,11 @@ load("@bazel_tools//tools/build_defs/repo:utils.bzl", "maybe")
 # TODO: remove `remove-result-of.patch` once we update to a Swift version containing
 # https://github.com/apple/swift/commit/2ed2cea2
 # (probably when updating to 5.9)
-_swift_prebuilt_version = "swift-5.8.1-RELEASE.208"
+_swift_prebuilt_version = "swift-5.8.1-RELEASE.210"
 _swift_sha_map = {
-    "Linux-X64": "1d93286d6219e5c5746938ab9287d90efea98039f022cb1433296ccbc1684bc0",
-    "macOS-ARM64": "a29ce5143cb2c68190e337a35ebb163e961a58b9d8826fe7f8daf4d8381ee75d",
-    "macOS-X64": "a7e63ea732750c783142083df20a34c8d337b9b9ba210fa6a9e5ada7b7880189",
+    "Linux-X64": "d8c715044c3989683b3f986a377647697245ed6bbdc2add13890433c9dc732a4",
+    "macOS-ARM64": "2ca169f299bce61034bd011f081a55be07a19f20fd7ea855b241f43fe0fb76d2",
+    "macOS-X64": "80e2e8cefbd78d71e54923c1da36cac3511b4c69c4841cf35bef383bc6750d18",
 }
 
 _swift_arch_map = {