[ExtractAPI] Include tilde in destructor name (#146001)

The subheading for a destructor contained only the identifier. The tilde
must also be included as it is necessary to differentiate the destructor
from any constructors present.

rdar://129587608

Author: snprajwal

clang/lib/ExtractAPI/DeclarationFragments.cpp

@@ -1617,10 +1617,13 @@ DeclarationFragmentsBuilder::getFunctionSignature(const ObjCMethodDecl *);
 DeclarationFragments
 DeclarationFragmentsBuilder::getSubHeading(const NamedDecl *Decl) {
   DeclarationFragments Fragments;
-  if (isa<CXXConstructorDecl>(Decl) || isa<CXXDestructorDecl>(Decl))
+  if (isa<CXXConstructorDecl>(Decl)) {
     Fragments.append(cast<CXXRecordDecl>(Decl->getDeclContext())->getName(),
                      DeclarationFragments::FragmentKind::Identifier);
-  else if (isa<CXXConversionDecl>(Decl)) {
+  } else if (isa<CXXDestructorDecl>(Decl)) {
+    Fragments.append(cast<CXXDestructorDecl>(Decl)->getNameAsString(),
+                     DeclarationFragments::FragmentKind::Identifier);
+  } else if (isa<CXXConversionDecl>(Decl)) {
     Fragments.append(
         cast<CXXConversionDecl>(Decl)->getConversionType().getAsString(),
         DeclarationFragments::FragmentKind::Identifier);
@@ -1634,9 +1637,11 @@ DeclarationFragmentsBuilder::getSubHeading(const NamedDecl *Decl) {
   } else if (Decl->getIdentifier()) {
     Fragments.append(Decl->getName(),
                      DeclarationFragments::FragmentKind::Identifier);
-  } else
+  } else {
     Fragments.append(Decl->getDeclName().getAsString(),
                      DeclarationFragments::FragmentKind::Identifier);
+  }
+
   return Fragments;
 }
 

clang/test/ExtractAPI/constructor_destructor.cpp

@@ -213,7 +213,7 @@ class Foo {
         "subHeading": [
           {
             "kind": "identifier",
-            "spelling": "Foo"
+            "spelling": "~Foo"
           }
         ],
         "title": "~Foo"