Only store the minimal requirements in generic metadata, where

"minimal" is defined as the set of requirements that would be
passed to a function with the type's generic signature that
takes the thick metadata of the parent type as its only argument.

lib/IRGen/IRGenModule.cpp

@@ -377,6 +377,7 @@ IRGenModule::~IRGenModule() {
     delete DebugInfo;
   delete ABITypes;
 }
+
 static bool isReturnAttribute(llvm::Attribute::AttrKind Attr);
 
 // Explicitly listing these constants is an unfortunate compromise for