Dont remove stmt_error

crates/compiler/gen_wasm/src/backend.rs

@@ -987,6 +987,27 @@ impl<'a> WasmBackend<'a> {
         self.stmt(rc_stmt);
     }
 
+    pub fn stmt_internal_error(&mut self, msg: &'a str) {
+        let msg_sym = self.create_symbol("panic_str");
+        let msg_storage = self.storage.allocate_var(
+            self.env.layout_interner,
+            Layout::Builtin(Builtin::Str),
+            msg_sym,
+            StoredVarKind::Variable,
+        );
+
+        // Store the message as a RocStr on the stack
+        let (local_id, offset) = match msg_storage {
+            StoredValue::StackMemory { location, .. } => {
+                location.local_and_offset(self.storage.stack_frame_pointer)
+            }
+            _ => internal_error!("String must always have stack memory"),
+        };
+        self.expr_string_literal(msg, local_id, offset);
+
+        self.stmt_crash(msg_sym, CrashTag::Roc);
+    }
+
     pub fn stmt_crash(&mut self, msg: Symbol, tag: CrashTag) {
         // load the pointer
         self.storage.load_symbols(&mut self.code_builder, &[msg]);