HLSL: Build IO types bottom up, as parsed, and cache the original (IO).

Previously, this was done recursively, per object, and the nonIO version
was cached. This reverses both those approaches.

glslang/Include/Types.h

@@ -412,7 +412,7 @@ public:
     }
 
     // Remove IO related data from qualifier.
-    void makeNonIo()
+    void makeNonIo()  //?? remove?
     {
         // This preserves the storage type
         builtIn      = EbvNone;
@@ -429,7 +429,7 @@ public:
     }
 
     // Return true if there is data which would be scrubbed by makeNonIo
-    bool hasIoData() const
+    bool hasIoData() const // ?? remove?
     {
         return builtIn != EbvNone ||
             hasLayout()           ||
@@ -626,7 +626,6 @@ public:
     {
         return hasUniformLayout() ||
                hasAnyLocation() ||
-               hasBinding() ||
                hasStream() ||
                hasXfb() ||
                hasFormat() ||
@@ -1221,34 +1220,10 @@ public:
     // Make complete copy of the whole type graph rooted at 'copyOf'.
     void deepCopy(const TType& copyOf)
     {
-        TMap<TTypeList*,TTypeList*> copied;  // to enable copying a type graph as a graph, not a tree
+        TMap<TTypeList*,TTypeList*> copied;  // to enable copying a type graph as a graph, not a tree  //?? turn off again?
         deepCopy(copyOf, copied);
     }
 
-    // Return true if type (recursively) contains IO data.
-    bool hasIoData() const
-    {
-        if (getQualifier().hasIoData())
-            return true;
-
-        if (isStruct())
-            for (unsigned int i = 0; i < structure->size(); ++i)
-                if ((*structure)[i].type->hasIoData())
-                    return true;
-
-        return false;
-    }
-
-    // Remove IO related data from type
-    void makeNonIo()
-    {
-        getQualifier().makeNonIo();
-
-        if (isStruct())
-            for (unsigned int i = 0; i < structure->size(); ++i)
-                (*structure)[i].type->makeNonIo();
-    }
-
     // Recursively make temporary
     void makeTemporary()
     {

glslang/Include/revision.h

@@ -2,5 +2,5 @@
 // For the version, it uses the latest git tag followed by the number of commits.
 // For the date, it uses the current date (when then script is run).
 
-#define GLSLANG_REVISION "Overload400-PrecQual.1787"
-#define GLSLANG_DATE "03-Feb-2017"
+#define GLSLANG_REVISION "Overload400-PrecQual.1791"
+#define GLSLANG_DATE "04-Feb-2017"