Create a VTableContext class and start moving CodeGenVTables methods to it

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140502 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGCXX.cpp b/lib/CodeGen/CGCXX.cpp
index e1463e9..3539d90 100644
--- a/lib/CodeGen/CGCXX.cpp
+++ b/lib/CodeGen/CGCXX.cpp
@@ -305,7 +305,7 @@
 CodeGenFunction::BuildVirtualCall(const CXXMethodDecl *MD, llvm::Value *This,
                                   llvm::Type *Ty) {
   MD = MD->getCanonicalDecl();
-  uint64_t VTableIndex = CGM.getVTables().getMethodVTableIndex(MD);
+  uint64_t VTableIndex = CGM.getVTableContext().getMethodVTableIndex(MD);
   
   return ::BuildVirtualCall(*this, VTableIndex, This, Ty);
 }
@@ -335,7 +335,7 @@
   VTable = Builder.CreateBitCast(VTable, Ty);
   assert(VTable && "BuildVirtualCall = kext vtbl pointer is null");
   MD = MD->getCanonicalDecl();
-  uint64_t VTableIndex = CGM.getVTables().getMethodVTableIndex(MD);
+  uint64_t VTableIndex = CGM.getVTableContext().getMethodVTableIndex(MD);
   uint64_t AddressPoint = 
     CGM.getVTables().getAddressPoint(BaseSubobject(RD, CharUnits::Zero()), RD);
   VTableIndex += AddressPoint;
@@ -370,7 +370,7 @@
     VTable = Builder.CreateBitCast(VTable, Ty);
     DD = cast<CXXDestructorDecl>(DD->getCanonicalDecl());
     uint64_t VTableIndex = 
-      CGM.getVTables().getMethodVTableIndex(GlobalDecl(DD, Type));
+      CGM.getVTableContext().getMethodVTableIndex(GlobalDecl(DD, Type));
     uint64_t AddressPoint =
       CGM.getVTables().getAddressPoint(BaseSubobject(RD, CharUnits::Zero()), RD);
     VTableIndex += AddressPoint;
@@ -386,7 +386,7 @@
                                   llvm::Value *This, llvm::Type *Ty) {
   DD = cast<CXXDestructorDecl>(DD->getCanonicalDecl());
   uint64_t VTableIndex = 
-    CGM.getVTables().getMethodVTableIndex(GlobalDecl(DD, Type));
+    CGM.getVTableContext().getMethodVTableIndex(GlobalDecl(DD, Type));
 
   return ::BuildVirtualCall(*this, VTableIndex, This, Ty);
 }