Continue work on custom SSA; Fix double declaration in when statements

src/checker.c

@@ -11,7 +11,8 @@ typedef enum StmtFlag {
 	Stmt_BreakAllowed       = 1<<0,
 	Stmt_ContinueAllowed    = 1<<1,
 	Stmt_FallthroughAllowed = 1<<2,
-	Stmt_GiveAllowed        = 1<<3,
+
+	Stmt_CheckScopeDecls    = 1<<5,
 } StmtFlag;
 
 typedef struct BuiltinProc {
@@ -550,6 +551,10 @@ Entity *scope_lookup_entity(Scope *s, String name) {
 
 Entity *scope_insert_entity(Scope *s, Entity *entity) {
 	String name = entity->token.string;
+	if (str_eq(name, str_lit("output"))) {
+		gb_printf_err("Here! %.*s\n", LIT(name));
+	}
+
 	HashKey key = hash_string(name);
 	Entity **found = map_entity_get(&s->elements, key);
 
@@ -1292,7 +1297,6 @@ void check_procedure_overloading(Checker *c, Entity *e) {
 			continue;
 		}
 
-
 		String name = p->token.string;
 
 		GB_ASSERT(p->kind == Entity_Procedure);