A bunch of semantic checks were missing for binary arithmetic operations. Refactor the "promote" logic to fix these.

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@21784 e7fa87d3-cd2b-0410-9028-fcbf551c1848

glslang/Include/Types.h

@@ -563,6 +563,7 @@ public:
     void setArrayInformationType(TType* t) { arrayInformationType = t; }
     TType* getArrayInformationType() { return arrayInformationType; }
     virtual bool isVector() const { return vectorSize > 1; }
+    virtual bool isScalar() const { return vectorSize == 1; }
     const char* getBasicString() const {
         return TType::getBasicString(basicType);
     }

glslang/Include/intermediate.h

@@ -360,6 +360,7 @@ public:
     virtual bool isMatrix() const { return type.isMatrix(); }
     virtual bool isArray()  const { return type.isArray(); }
     virtual bool isVector() const { return type.isVector(); }
+    virtual bool isScalar() const { return type.isScalar(); }
     TString getCompleteString() const { return type.getCompleteString(); }
 
 protected: