Fix some memory leaks

src/compiler.pr

@@ -5453,6 +5453,7 @@ def walk_For_generator(node: &parser::Node, state: &State) {
         last_node = n
     }
     let last_loc = make_location(last_node, state)
+    insert_destructor(locv, loc, state)
     insert_destructors(node.inner_scope, last_loc, state)
     pop_scope(state)
 
@@ -6942,7 +6943,7 @@ def create_free_context(function: &Function, state: &State) {
         let label_ = state.make_label()
         push_label(label_, state)
         switch_values.push([
-            value = make_int_value(i + 1),
+            value = make_int_value(i),
             label_ = label_
         ] !SwitchValue)
 
@@ -7388,6 +7389,12 @@ export def create_function(
         generate_defer_types_pre(state)
 
         if function.has_yield {
+            // Create new snapshot for arguments
+            let new_snapshot = map::make(int)
+            new_snapshot.put_all(function.current_snapshot)
+            function.current_snapshot = new_snapshot
+            function.snapshots.push(new_snapshot)
+
             // Get is_at_end pointer
             let is_at_end_gep = make_insn(InsnKind::GETELEMENTPTR)
             is_at_end_gep.value.gep = [

std/std.pr

@@ -28,7 +28,7 @@ from strings export *
             ref_roots = zero_allocate(type &map::Map(uint64, Root))
             @ref_roots = map::make(uint64, Root)
         }
-        (@ref_roots)(ref.value !uint64) = [ ref, make_string(file), line ] !Root
+        (@ref_roots)(ref.value !uint64) = [ ref = ref, file = make_string(file), line = line ] !Root
         lock = l
     }