Avoid adding duplicate struct constructors.

src/common/version.h

 #define MAJOR_VERSION 1
 #define MINOR_VERSION 0
 #define BUILD_VERSION 0
-#define BUILD_REVISION 1005
+#define BUILD_REVISION 1006
 
 #define STRINGIFY(x) #x
 #define MACRO_STRINGIFY(x) STRINGIFY(x)

src/compiler/OutputHLSL.cpp

@@ -2106,6 +2106,11 @@ void OutputHLSL::addConstructor(const TType &type, const TString &name, const TI
         return;   // Nameless structures don't have constructors
     }
 
+    if (type.getStruct() && mStructNames.find(decorate(name)) != mStructNames.end())
+    {
+        return;   // Already added
+    }
+
     TType ctorType = type;
     ctorType.clearArrayness();
     ctorType.setPrecision(EbpHigh);