For PR1136: Rename GlobalVariable::isExternal as isDeclaration to avoid
confusion with external linkage types.

llvm-svn: 33663
diff --git a/llvm/lib/Transforms/Utils/InlineFunction.cpp b/llvm/lib/Transforms/Utils/InlineFunction.cpp
index 83cdfb8..f4b1331 100644
--- a/llvm/lib/Transforms/Utils/InlineFunction.cpp
+++ b/llvm/lib/Transforms/Utils/InlineFunction.cpp
@@ -184,7 +184,7 @@
 
   const Function *CalledFunc = CS.getCalledFunction();
   if (CalledFunc == 0 ||          // Can't inline external function or indirect
-      CalledFunc->isExternal() || // call, or call to a vararg function!
+      CalledFunc->isDeclaration() || // call, or call to a vararg function!
       CalledFunc->getFunctionType()->isVarArg()) return false;