///
/// @param SS An optional C++ scope-specifier, e.g., "::N::M".
///
-/// @param Name The name of the entity that name lookup will
-/// search for.
-///
-/// @param Loc If provided, the source location where we're performing
-/// name lookup. At present, this is only used to produce diagnostics when
-/// C library functions (like "malloc") are implicitly declared.
-///
/// @param EnteringContext Indicates whether we are going to enter the
/// context of the scope-specifier SS (if present).
///