GLSL: Add error check for an argument dropping the 'restrict' qualifier

Test/baseResults/310.comp.out

@@ -29,6 +29,7 @@ ERROR: 0:94: 'writeonly' : argument cannot drop memory qualifier when passed to
 ERROR: 0:97: '' : memory qualifiers cannot be used on this type 
 ERROR: 0:98: '' : memory qualifiers cannot be used on this type 
 ERROR: 0:109: 'format' : image formats must match 
+ERROR: 0:110: 'restrict' : argument cannot drop memory qualifier when passed to formal parameter 
 ERROR: 0:110: 'format' : image formats must match 
 ERROR: 0:111: 'format' : image formats must match 
 ERROR: 0:114: 'image load-store format' : not supported with this profile: es
@@ -86,7 +87,7 @@ WARNING: 0:238: '#define' : names containing consecutive underscores are reserve
 ERROR: 0:244: 'gl_DeviceIndex' : required extension not requested: GL_EXT_device_group
 ERROR: 0:245: 'gl_ViewIndex' : undeclared identifier 
 ERROR: 0:255: 'gl_ViewIndex' : undeclared identifier 
-ERROR: 85 compilation errors.  No code generated.
+ERROR: 86 compilation errors.  No code generated.
 
 
 Shader version: 310

glslang/MachineIndependent/ParseHelper.cpp

@@ -1156,6 +1156,8 @@ TIntermTyped* TParseContext::handleFunctionCall(const TSourceLoc& loc, TFunction
                             error(arguments->getLoc(), message, "readonly", "");
                         if (argQualifier.writeonly && ! formalQualifier.writeonly)
                             error(arguments->getLoc(), message, "writeonly", "");
+                        if (!builtIn && argQualifier.restrict && ! formalQualifier.restrict)
+                            error(arguments->getLoc(), message, "restrict", "");
                     }
                     if (!builtIn && argQualifier.layoutFormat != formalQualifier.layoutFormat) {
                         // we have mismatched formats, which should only be allowed if writeonly