Deduplicate listings of traps in Wasmtime (#5299)

This commit replaces `wasmtime_environ::TrapCode` with `wasmtime::Trap`.
This is possible with past refactorings which slimmed down the `Trap`
definition in the `wasmtime` crate to a simple `enum`. This means that
there's one less place that all the various trap opcodes need to be
listed in Wasmtime.

crates/runtime/src/instance/allocator.rs

@@ -13,8 +13,8 @@ use std::sync::Arc;
 use thiserror::Error;
 use wasmtime_environ::{
     DefinedMemoryIndex, DefinedTableIndex, HostPtr, InitMemory, MemoryInitialization,
-    MemoryInitializer, Module, PrimaryMap, TableInitialization, TableInitializer, TrapCode,
-    VMOffsets, WasmType, WASM_PAGE_SIZE,
+    MemoryInitializer, Module, PrimaryMap, TableInitialization, TableInitializer, Trap, VMOffsets,
+    WasmType, WASM_PAGE_SIZE,
 };
 
 #[cfg(feature = "pooling-allocator")]
@@ -105,7 +105,7 @@ pub enum InstantiationError {
 
     /// A trap ocurred during instantiation, after linking.
     #[error("Trap occurred during instantiation")]
-    Trap(TrapCode),
+    Trap(Trap),
 
     /// A limit on how many instances are supported has been reached.
     #[error("Limit of {0} concurrent instances has been reached")]
@@ -386,7 +386,7 @@ fn initialize_memories(instance: &mut Instance, module: &Module) -> Result<(), I
         },
     );
     if !ok {
-        return Err(InstantiationError::Trap(TrapCode::HeapOutOfBounds));
+        return Err(InstantiationError::Trap(Trap::MemoryOutOfBounds));
     }
 
     Ok(())