Change memory layout of map to be 3 words smaller

src/entity.cpp

@@ -45,6 +45,7 @@ enum EntityFlag {
 	EntityFlag_Sret          = 1<<11,
 	EntityFlag_BitFieldValue = 1<<12,
 	EntityFlag_PolyConst     = 1<<13,
+	EntityFlag_NotExported   = 1<<14,
 
 	EntityFlag_CVarArg       = 1<<20,
 	EntityFlag_AutoCast      = 1<<21,
@@ -172,6 +173,10 @@ bool is_entity_exported(Entity *e) {
 		return false;
 	}
 
+	if (e->flags & EntityFlag_NotExported) {
+		return false;
+	}
+
 	String name = e->token.string;
 	if (name.len == 0) {
 		return false;