start switching decls over to using an allocator controlled by ASTContext.  
Right now only some ctors are switched over.  I need to switch them all
over so I can change the dtor over.

This lets us experiment with region allocation and other things in the 
future.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48390 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Sema/Sema.cpp b/Sema/Sema.cpp
index 5b7a309..d854919 100644
--- a/Sema/Sema.cpp
+++ b/Sema/Sema.cpp
@@ -59,15 +59,16 @@
   TUScope->AddDecl(IDecl);
   
   // Synthesize "typedef struct objc_selector *SEL;"
-  RecordDecl *SelTag = new RecordDecl(Decl::Struct, SourceLocation(), 
-                                      &Context.Idents.get("objc_selector"), 0);
+  RecordDecl *SelTag = RecordDecl::Create(Decl::Struct, SourceLocation(), 
+                                          &Context.Idents.get("objc_selector"),
+                                          0, Context);
   SelTag->getIdentifier()->setFETokenInfo(SelTag);
   TUScope->AddDecl(SelTag);
   
   QualType SelT = Context.getPointerType(Context.getTagDeclType(SelTag));
-  TypedefDecl *SelTypedef = new TypedefDecl(SourceLocation(),
-                                            &Context.Idents.get("SEL"),
-                                            SelT, 0);
+  TypedefDecl *SelTypedef = TypedefDecl::Create(SourceLocation(),
+                                                &Context.Idents.get("SEL"),
+                                                SelT, 0, Context);
   SelTypedef->getIdentifier()->setFETokenInfo(SelTypedef);
   TUScope->AddDecl(SelTypedef);
   Context.setObjCSelType(SelTypedef);
@@ -96,12 +97,12 @@
   // and make sure the decls get inserted into TUScope!
   if (PP.getLangOptions().ObjC1) {
     // Synthesize "typedef struct objc_class *Class;"
-    RecordDecl *ClassTag = new RecordDecl(Decl::Struct, SourceLocation(), 
-                                          &IT.get("objc_class"), 0);
+    RecordDecl *ClassTag = RecordDecl::Create(Decl::Struct, SourceLocation(), 
+                                              &IT.get("objc_class"), 0,Context);
     QualType ClassT = Context.getPointerType(Context.getTagDeclType(ClassTag));
-    TypedefDecl *ClassTypedef = new TypedefDecl(SourceLocation(),
-                                                &Context.Idents.get("Class"),
-                                                ClassT, 0);
+    TypedefDecl *ClassTypedef = 
+      TypedefDecl::Create(SourceLocation(), &Context.Idents.get("Class"),
+                          ClassT, 0, Context);
     Context.setObjCClassType(ClassTypedef);
     
     // Synthesize "@class Protocol;
@@ -110,15 +111,16 @@
     Context.setObjCProtoType(Context.getObjCInterfaceType(ProtocolDecl));
     
     // Synthesize "typedef struct objc_object { Class isa; } *id;"
-    RecordDecl *ObjectTag = new RecordDecl(Decl::Struct, SourceLocation(), 
-                                          &IT.get("objc_object"), 0);
+    RecordDecl *ObjectTag = 
+      RecordDecl::Create(Decl::Struct, SourceLocation(), &IT.get("objc_object"),
+                         0, Context);
     FieldDecl *IsaDecl = new FieldDecl(SourceLocation(), 0, 
                                        Context.getObjCClassType());
     ObjectTag->defineBody(&IsaDecl, 1);
     QualType ObjT = Context.getPointerType(Context.getTagDeclType(ObjectTag));
-    TypedefDecl *IdTypedef = new TypedefDecl(SourceLocation(),
-                                             &Context.Idents.get("id"),
-                                             ObjT, 0);
+    TypedefDecl *IdTypedef = TypedefDecl::Create(SourceLocation(),
+                                                 &Context.Idents.get("id"),
+                                                 ObjT, 0, Context);
     Context.setObjCIdType(IdTypedef);
   }
   TUScope = 0;
diff --git a/Sema/SemaDecl.cpp b/Sema/SemaDecl.cpp
index 300a382..90f9133 100644
--- a/Sema/SemaDecl.cpp
+++ b/Sema/SemaDecl.cpp
@@ -1175,8 +1175,9 @@
   assert(!T.isNull() && "GetTypeForDeclarator() returned null type");
   
   // Scope manipulation handled by caller.
-  TypedefDecl *NewTD = new TypedefDecl(D.getIdentifierLoc(), D.getIdentifier(), 
-                                       T, LastDeclarator);
+  TypedefDecl *NewTD = TypedefDecl::Create(D.getIdentifierLoc(), 
+                                           D.getIdentifier(), 
+                                           T, LastDeclarator, Context);
   if (D.getInvalidType())
     NewTD->setInvalidDecl();
   return NewTD;
@@ -1255,7 +1256,7 @@
   case Decl::Enum:
     // FIXME: Tag decls should be chained to any simultaneous vardecls, e.g.:
     // enum X { A, B, C } D;    D should chain to X.
-    New = new EnumDecl(Loc, Name, 0);
+    New = EnumDecl::Create(Loc, Name, 0, Context);
     // If this is an undefined enum, warn.
     if (TK != TK_Definition) Diag(Loc, diag::ext_forward_ref_enum);
     break;
@@ -1264,7 +1265,7 @@
   case Decl::Class:
     // FIXME: Tag decls should be chained to any simultaneous vardecls, e.g.:
     // struct X { int A; } D;    D should chain to X.
-    New = new RecordDecl(Kind, Loc, Name, 0);
+    New = RecordDecl::Create(Kind, Loc, Name, 0, Context);
     break;
   }    
   
@@ -1577,8 +1578,9 @@
     }
   }
   
-  EnumConstantDecl *New = new EnumConstantDecl(IdLoc, Id, EltTy, Val, EnumVal,
-                                               LastEnumConst);
+  EnumConstantDecl *New = 
+    EnumConstantDecl::Create(IdLoc, Id, EltTy, Val, EnumVal, LastEnumConst,
+                             Context);
   
   // Register this decl in the current scope stack.
   New->setNext(Id->getFETokenInfo<ScopedDecl>());