Add support for querying gl_DepthRange as an active uniform via GetActiveUniform.

TRAC #22865

Signed-off-by: Geoff Lang
Signed-off-by: Shannon Woods
Author: Jamie Madill

git-svn-id: https://angleproject.googlecode.com/svn/branches/es3proto@2292 736b8ea6-26fd-11df-bfd4-992fa37f6226
diff --git a/src/compiler/OutputHLSL.cpp b/src/compiler/OutputHLSL.cpp
index cc4f852..04918b3 100644
--- a/src/compiler/OutputHLSL.cpp
+++ b/src/compiler/OutputHLSL.cpp
@@ -845,6 +845,11 @@
         out << "#define GL_USES_POINT_SIZE\n";
     }
 
+    if (mUsesDepthRange)
+    {
+        out << "#define GL_USES_DEPTH_RANGE\n";
+    }
+
     if (mUsesXor)
     {
         out << "bool xor(bool p, bool q)\n"