Fix lots of variable shadowing in ANGLE

BUG=angle:877

Change-Id: I3df0fffb19f5ecbe439fbc2a8d6d239a5dc6b638
Reviewed-on: https://chromium-review.googlesource.com/243334
Tested-by: Austin Kinross <aukinros@microsoft.com>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
diff --git a/src/compiler/translator/OutputGLSLBase.cpp b/src/compiler/translator/OutputGLSLBase.cpp
index b98f5d5..8d8830c 100644
--- a/src/compiler/translator/OutputGLSLBase.cpp
+++ b/src/compiler/translator/OutputGLSLBase.cpp
@@ -651,11 +651,11 @@
         for (TIntermSequence::const_iterator iter = node->getSequence()->begin();
              iter != node->getSequence()->end(); ++iter)
         {
-            TIntermNode *node = *iter;
-            ASSERT(node != NULL);
-            node->traverse(this);
+            TIntermNode *curNode = *iter;
+            ASSERT(curNode != NULL);
+            curNode->traverse(this);
 
-            if (isSingleStatement(node))
+            if (isSingleStatement(curNode))
                 out << ";\n";
         }
         decrementDepth();