message: Fix sourcevar declarations for private variables
diff: @@ -921,10 +921,13 @@ ShaderDebugTrace *Debugger::BeginDebug(DebugAPIWrapper *apiWrapper, const Shader
  {
  SourceVariableMapping sourceVar;
  sourceVar.name = sourceName;
  - sourceVar.rows = 1;
  - sourceVar.columns = 1;
  + sourceVar.type = var.type;
  + sourceVar.rows = RDCMAX(1U, (uint32_t)var.rows);
  + sourceVar.columns = RDCMAX(1U, (uint32_t)var.columns);
  sourceVar.offset = 0;
  - sourceVar.variables.push_back(DebugVariableReference(DebugVariableType::Variable, var.name));
  + for(uint32_t x = 0; x < sourceVar.rows * sourceVar.columns; x++)
  + sourceVar.variables.push_back(
  + DebugVariableReference(DebugVariableType::Variable, var.name, x));
  globalSourceVars.push_back(sourceVar);
  }
  