Add representation of base classes in the AST, and verify that we
don't have duplicated direct base classes.

Seriliazation of base class specifiers is not yet implemented.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57991 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/DeclCXX.cpp b/lib/AST/DeclCXX.cpp
index 9fd7ff9..86db853 100644
--- a/lib/AST/DeclCXX.cpp
+++ b/lib/AST/DeclCXX.cpp
@@ -26,6 +26,14 @@
   return new (Mem) CXXFieldDecl(RD, L, Id, T, BW);
 }
 
+CXXBaseSpecifier *CXXBaseSpecifier::Create(ASTContext &C, SourceRange R, bool V, 
+                                           bool BC, AccessSpecifier A, QualType T)
+{
+  void *Mem = C.getAllocator().Allocate<CXXBaseSpecifier>();
+  CXXBaseSpecifier* BS = new (Mem) CXXBaseSpecifier(R, V, BC, A, T);
+  return BS;
+}
+
 CXXRecordDecl *CXXRecordDecl::Create(ASTContext &C, TagKind TK, DeclContext *DC,
                                      SourceLocation L, IdentifierInfo *Id,
                                      CXXRecordDecl* PrevDecl) {
@@ -35,6 +43,12 @@
   return R;
 }
 
+CXXRecordDecl::~CXXRecordDecl() {
+  for (unsigned i = 0; i < NumBases; ++i)
+    delete Bases[i];
+  delete [] Bases;
+}
+
 CXXMethodDecl *
 CXXMethodDecl::Create(ASTContext &C, CXXRecordDecl *RD,
                       SourceLocation L, IdentifierInfo *Id,