Confirm s is a valid template, then store it. Input: sc s candidate symbol of template. It may be: TemplateDeclaration FuncDeclaration with findTemplateDeclRoot() != NULL OverloadSet which contains candidates
true if updating succeeds.
See Implementation
Confirm s is a valid template, then store it. Input: sc s candidate symbol of template. It may be: TemplateDeclaration FuncDeclaration with findTemplateDeclRoot() != NULL OverloadSet which contains candidates