[interop][SwiftToCxx] mark the alloc/free heap allocation functions as noexcept

Author: hyp

lib/PrintAsClang/PrintSwiftToClangCoreScaffold.cpp

@@ -145,7 +145,7 @@ static void printTypeMetadataResponseType(SwiftToClangInteropContext &ctx,
 }
 
 static void printOpaqueAllocFee(raw_ostream &os) {
-  os << R"text(inline void * _Nonnull opaqueAlloc(size_t size, size_t align) {
+  os << R"text(inline void * _Nonnull opaqueAlloc(size_t size, size_t align) noexcept {
 #if defined(_WIN32)
   void *r = _aligned_malloc(size, align);
 #else
@@ -156,7 +156,7 @@ static void printOpaqueAllocFee(raw_ostream &os) {
 #endif
   return r;
 }
-inline void opaqueFree(void * _Nonnull p) {
+inline void opaqueFree(void * _Nonnull p) noexcept {
 #if defined(_WIN32)
   _aligned_free(p);
 #else

test/Interop/SwiftToCxx/core/swift-impl-defs-in-cxx.swift

@@ -63,7 +63,7 @@
 // CHECK-NEXT: }
 // CHECK-NEXT: #endif
 // CHECK-EMPTY:
-// CHECK-NEXT: inline void * _Nonnull opaqueAlloc(size_t size, size_t align) {
+// CHECK-NEXT: inline void * _Nonnull opaqueAlloc(size_t size, size_t align) noexcept {
 // CHECK-NEXT: #if defined(_WIN32)
 // CHECK-NEXT:   void *r = _aligned_malloc(size, align);
 // CHECK-NEXT: #else
@@ -74,7 +74,7 @@
 // CHECK-NEXT: #endif
 // CHECK-NEXT:   return r;
 // CHECK-NEXT: }
-// CHECK-NEXT: inline void opaqueFree(void * _Nonnull p) {
+// CHECK-NEXT: inline void opaqueFree(void * _Nonnull p) noexcept {
 // CHECK-NEXT: #if defined(_WIN32)
 // CHECK-NEXT:   _aligned_free(p);
 // CHECK-NEXT: #else