SIL bridging: work around an unresolved symbol linker error

Works around  problem #64502

Author: eeckstein

include/swift/SILOptimizer/Analysis/BasicCalleeAnalysis.h

@@ -191,6 +191,8 @@ class BasicCalleeAnalysis : public SILAnalysis {
   BasicCalleeAnalysis(SILModule *M)
       : SILAnalysis(SILAnalysisKind::BasicCallee), M(*M), Cache(nullptr) {}
 
+  ~BasicCalleeAnalysis();
+
   static bool classof(const SILAnalysis *S) {
     return S->getKind() == SILAnalysisKind::BasicCallee;
   }

include/swift/SILOptimizer/OptimizerBridging.h

@@ -50,14 +50,10 @@ struct BridgedCalleeAnalysis {
   swift::BasicCalleeAnalysis * _Nonnull ca;
 
   SWIFT_IMPORT_UNSAFE
-  swift::CalleeList getCallees(BridgedValue callee) const {
-    return ca->getCalleeListOfValue(callee.getSILValue());
-  }
+  swift::CalleeList getCallees(BridgedValue callee) const;
 
   SWIFT_IMPORT_UNSAFE
-  swift::CalleeList getDestructors(swift::SILType type, bool isExactType) const {
-    return ca->getDestructors(type, isExactType);
-  }
+  swift::CalleeList getDestructors(swift::SILType type, bool isExactType) const;
 
   SWIFT_IMPORT_UNSAFE
   static BridgedFunction getCallee(swift::CalleeList cl, SwiftInt index) {

lib/SILOptimizer/Analysis/BasicCalleeAnalysis.cpp

@@ -313,6 +313,10 @@ CalleeList CalleeCache::getDestructors(SILType type, bool isExactType) const {
   return getCalleeList(SILDeclRef(classDecl->getDestructor()));
 }
 
+// TODO: can't be inlined to work around https://github.com/apple/swift/issues/64502
+BasicCalleeAnalysis::~BasicCalleeAnalysis() {
+}
+
 void BasicCalleeAnalysis::dump() const {
   print(llvm::errs());
 }

lib/SILOptimizer/PassManager/PassManager.cpp

@@ -1444,3 +1444,13 @@ bool BridgedPassContext::enableSimplificationFor(BridgedInstruction inst) const
   }
   return false;
 }
+
+// TODO: can't be inlined to work around https://github.com/apple/swift/issues/64502
+CalleeList BridgedCalleeAnalysis::getCallees(BridgedValue callee) const {
+  return ca->getCalleeListOfValue(callee.getSILValue());
+}
+
+// TODO: can't be inlined to work around https://github.com/apple/swift/issues/64502
+CalleeList BridgedCalleeAnalysis::getDestructors(SILType type, bool isExactType) const {
+  return ca->getDestructors(type, isExactType);
+}