Add missing gc feature gates (#12074) (#12083)

* add more `gc` feature gates

* test debug gc feature combination

Co-authored-by: primoly <168267431+primoly@users.noreply.github.com>

Author: alexcrichton

.github/workflows/main.yml

@@ -366,6 +366,8 @@ jobs:
               -p wasmtime --no-default-features --features stack-switching
               -p wasmtime --no-default-features --features cranelift,stack-switching
               -p wasmtime --no-default-features --features runtime,stack-switching
+              -p wasmtime --no-default-features --features debug
+              -p wasmtime --no-default-features --features debug,gc
               -p wasmtime --features incremental-cache
               -p wasmtime --features profile-pulley
               -p wasmtime --all-features

crates/wasmtime/src/runtime/module.rs

@@ -1132,7 +1132,7 @@ impl Module {
 
     /// Get the text offset (relative PC) for a given absolute PC in
     /// this module.
-    #[cfg(any(feature = "gc", feature = "debug"))]
+    #[cfg(feature = "gc")]
     pub(crate) fn text_offset(&self, pc: usize) -> u32 {
         u32::try_from(pc - self.inner.module.text().as_ptr() as usize).unwrap()
     }

crates/wasmtime/src/runtime/vm/traphandlers.rs

@@ -21,7 +21,7 @@ use crate::runtime::module::lookup_code;
 use crate::runtime::store::{ExecutorRef, StoreOpaque};
 use crate::runtime::vm::sys::traphandlers;
 use crate::runtime::vm::{InterpreterRef, VMContext, VMStore, VMStoreContext, f32x4, f64x2, i8x16};
-#[cfg(feature = "debug")]
+#[cfg(all(feature = "debug", feature = "gc"))]
 use crate::store::AsStoreOpaque;
 use crate::{EntryStoreContext, prelude::*};
 use crate::{StoreContextMut, WasmBacktrace};
@@ -830,6 +830,7 @@ impl CallThreadState {
         #[cfg(feature = "debug")]
         {
             let result = match &unwind {
+                #[cfg(feature = "gc")]
                 UnwindState::UnwindToWasm(_) => {
                     assert!(store.as_store_opaque().has_pending_exception());
                     let exn = store
@@ -838,12 +839,11 @@ impl CallThreadState {
                         .expect("exception should be set when we are throwing");
                     store.block_on_debug_handler(crate::DebugEvent::CaughtExceptionThrown(exn))
                 }
-
+                #[cfg(feature = "gc")]
                 UnwindState::UnwindToHost {
                     reason: UnwindReason::Trap(TrapReason::Exception),
                     ..
                 } => {
-                    use crate::store::AsStoreOpaque;
                     let exn = store
                         .as_store_opaque()
                         .pending_exception_owned_rooted()