Implement -Wconversion.  Off by default, in the non-gcc group.  There's
significant work left to be done to reduce the false-positive rate here.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86326 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/Type.cpp b/lib/AST/Type.cpp
index 779f680..e9ce830 100644
--- a/lib/AST/Type.cpp
+++ b/lib/AST/Type.cpp
@@ -453,8 +453,7 @@
 
 bool Type::isRealFloatingType() const {
   if (const BuiltinType *BT = dyn_cast<BuiltinType>(CanonicalType))
-    return BT->getKind() >= BuiltinType::Float &&
-           BT->getKind() <= BuiltinType::LongDouble;
+    return BT->isFloatingPoint();
   if (const VectorType *VT = dyn_cast<VectorType>(CanonicalType))
     return VT->getElementType()->isRealFloatingType();
   return false;