HLSL non-functional: Generalize namespace nesting.

Also use this to move deferred member-function-body parsing to a better
place.

This should also be well poised for implementing the 'namespace' keyword.

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.1920"
-#define GLSLANG_DATE "16-Mar-2017"
+#define GLSLANG_REVISION "Overload400-PrecQual.1921"
+#define GLSLANG_DATE "19-Mar-2017"

glslang/MachineIndependent/ParseHelper.h

@@ -145,6 +145,8 @@ public:
     virtual bool lValueErrorCheck(const TSourceLoc&, const char* op, TIntermTyped*);
     virtual void rValueErrorCheck(const TSourceLoc&, const char* op, TIntermTyped*);
 
+    const char* const scopeMangler = "::";
+
 protected:
     TParseContextBase(TParseContextBase&);
     TParseContextBase& operator=(TParseContextBase&);