Generate Lod0 functions even if they don't contain gradients, so we can call them from discontinuous loops.

TRAC #20737
Signed-off-by: Daniel Koch
Author: Nicolas Capens

git-svn-id: https://angleproject.googlecode.com/svn/trunk@1128 736b8ea6-26fd-11df-bfd4-992fa37f6226
diff --git a/src/compiler/OutputHLSL.cpp b/src/compiler/OutputHLSL.cpp
index d0733c7..929da70 100644
--- a/src/compiler/OutputHLSL.cpp
+++ b/src/compiler/OutputHLSL.cpp
@@ -1445,7 +1445,7 @@
 
             if (mContainsLoopDiscontinuity && !mOutputLod0Function)
             {
-                if (name != "main" && containsGradientOperation(node))
+                if (name != "main")
                 {
                     mOutputLod0Function = true;
                     node->traverse(this);