r275925 - Fix some minor issues found by Coverity.

[Richard Smith via cfe-commits]

Author: rsmith
Date: Mon Jul 18 17:37:35 2016
New Revision: 275925

URL: http://llvm.org/viewvc/llvm-project?rev=275925&view=rev
Log:
Fix some minor issues found by Coverity.

Modified:
    cfe/trunk/include/clang/AST/DeclCXX.h
    cfe/trunk/lib/AST/ExprConstant.cpp
    cfe/trunk/lib/AST/ItaniumMangle.cpp

Modified: cfe/trunk/include/clang/AST/DeclCXX.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/AST/DeclCXX.h?rev=275925&r1=275924&r2=275925&view=diff
==============================================================================
--- cfe/trunk/include/clang/AST/DeclCXX.h (original)
+++ cfe/trunk/include/clang/AST/DeclCXX.h Mon Jul 18 17:37:35 2016
@@ -2964,7 +2964,9 @@ class ConstructorUsingShadowDecl final :
     }
   }
   ConstructorUsingShadowDecl(ASTContext &C, EmptyShell Empty)
-      : UsingShadowDecl(ConstructorUsingShadow, C, Empty) {}
+      : UsingShadowDecl(ConstructorUsingShadow, C, Empty),
+        NominatedBaseClassShadowDecl(), ConstructedBaseClassShadowDecl(),
+        IsVirtual(false) {}
 
 public:
   static ConstructorUsingShadowDecl *Create(ASTContext &C, DeclContext *DC,

Modified: cfe/trunk/lib/AST/ExprConstant.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/AST/ExprConstant.cpp?rev=275925&r1=275924&r2=275925&view=diff
==============================================================================
--- cfe/trunk/lib/AST/ExprConstant.cpp (original)
+++ cfe/trunk/lib/AST/ExprConstant.cpp Mon Jul 18 17:37:35 2016
@@ -6872,6 +6872,8 @@ bool IntExprEvaluator::VisitCallExpr(con
       // Reduce it to a constant now.
       return Success((Type & 2) ? 0 : -1, E);
     }
+
+    llvm_unreachable("unexpected EvalMode");
   }
 
   case Builtin::BI__builtin_bswap16:

Modified: cfe/trunk/lib/AST/ItaniumMangle.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/AST/ItaniumMangle.cpp?rev=275925&r1=275924&r2=275925&view=diff
==============================================================================
--- cfe/trunk/lib/AST/ItaniumMangle.cpp (original)
+++ cfe/trunk/lib/AST/ItaniumMangle.cpp Mon Jul 18 17:37:35 2016
@@ -1471,7 +1471,7 @@ void CXXNameMangler::mangleLocalName(con
     // numbering will be local to the particular argument in which it appears
     // -- other default arguments do not affect its encoding.
     const CXXRecordDecl *CXXRD = dyn_cast<CXXRecordDecl>(RD);
-    if (CXXRD->isLambda()) {
+    if (CXXRD && CXXRD->isLambda()) {
       if (const ParmVarDecl *Parm
               = dyn_cast_or_null<ParmVarDecl>(CXXRD->getLambdaContextDecl())) {
         if (const FunctionDecl *Func