Split the PHINode class out from the iOther.h file into the iPHINode.h file

llvm-svn: 1405
diff --git a/llvm/lib/ExecutionEngine/Interpreter/Execution.cpp b/llvm/lib/ExecutionEngine/Interpreter/Execution.cpp
index 2f0ee41..a1547c1 100644
--- a/llvm/lib/ExecutionEngine/Interpreter/Execution.cpp
+++ b/llvm/lib/ExecutionEngine/Interpreter/Execution.cpp
@@ -6,6 +6,7 @@
 
 #include "Interpreter.h"
 #include "ExecutionAnnotations.h"
+#include "llvm/iPHINode.h"
 #include "llvm/iOther.h"
 #include "llvm/iTerminators.h"
 #include "llvm/iMemory.h"