/// 1. If it does not exist, add a declaration of the global and return it.
/// 2. Else, the global exists but has the wrong type: return the function
/// with a constantexpr cast to the right type.
-/// 3. Finally, if the existing global is the correct delclaration, return the
+/// 3. Finally, if the existing global is the correct declaration, return the
/// existing global.
Constant *Module::getOrInsertGlobal(StringRef Name, Type *Ty) {
// See if we have a definition for the specified global already.