optimize: remove {StepResult,TailResult}::ForceThunk

fix-vm/src/instructions/with_scope.rs

@@ -11,7 +11,7 @@ impl<'gc> crate::Vm<'gc> {
         ctx: &mut impl crate::VmContext,
         reader: &mut BytecodeReader<'_>,
         mc: &gc_arena::Mutation<'gc>,
-    ) -> StepResult<'gc> {
+    ) -> StepResult {
         let env = reader.read_operand_data(ctx).resolve(mc, self);
         let scope = Gc::new(
             mc,
@@ -25,7 +25,7 @@ impl<'gc> crate::Vm<'gc> {
     }
 
     #[inline(always)]
-    pub(crate) fn op_pop_with(&mut self) -> StepResult<'gc> {
+    pub(crate) fn op_pop_with(&mut self) -> StepResult {
         let Some(scope) = self.with_env else {
             unreachable!("no with_scope to pop");
         };
@@ -34,7 +34,7 @@ impl<'gc> crate::Vm<'gc> {
     }
 
     #[inline(always)]
-    pub(crate) fn op_prepare_with(&mut self) -> StepResult<'gc> {
+    pub(crate) fn op_prepare_with(&mut self) -> StepResult {
         self.call_stack.push(CallFrame {
             pc: usize::MAX,
             stack_depth: 0,
@@ -51,7 +51,7 @@ impl<'gc> crate::Vm<'gc> {
         ctx: &mut impl crate::VmContext,
         reader: &mut BytecodeReader<'_>,
         mc: &gc_arena::Mutation<'gc>,
-    ) -> StepResult<'gc> {
+    ) -> StepResult {
         let name = reader.read_string_id();
 
         let Some(&WithEnv { env, prev }) = self.with_env.as_deref() else {
@@ -65,7 +65,7 @@ impl<'gc> crate::Vm<'gc> {
             )));
         };
         self.push_stack(env);
-        if let Some(step) = self.try_force_resolved(0, reader.inst_start_pc(), mc) {
+        if let Some(step) = self.try_force(0, reader, mc) {
             return step;
         }