Add Sema::VerifyIntegerConstantExpression

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60305 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/Sema.h b/lib/Sema/Sema.h
index 044bfbd..7b69de5 100644
--- a/lib/Sema/Sema.h
+++ b/lib/Sema/Sema.h
@@ -1347,6 +1347,11 @@
 
   void InitBuiltinVaListType();
 
+  /// VerifyIntegerConstantExpression - verifies that an expression is an ICE,
+  /// and reports the appropriate diagnostics. Returns false on success.
+  /// Can optionally return the value of the expression.
+  bool VerifyIntegerConstantExpression(const Expr* E, llvm::APSInt *Result = 0);
+
   //===--------------------------------------------------------------------===//
   // Extra semantic analysis beyond the C type system
 private: