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/table.rs

@@ -8,7 +8,7 @@ use anyhow::{bail, format_err, Error, Result};
 use std::convert::{TryFrom, TryInto};
 use std::ops::Range;
 use std::ptr;
-use wasmtime_environ::{TablePlan, TrapCode, WasmType, FUNCREF_INIT_BIT, FUNCREF_MASK};
+use wasmtime_environ::{TablePlan, Trap, WasmType, FUNCREF_INIT_BIT, FUNCREF_MASK};
 
 /// An element going into or coming out of a table.
 ///
@@ -267,7 +267,7 @@ impl Table {
         &mut self,
         dst: u32,
         items: impl ExactSizeIterator<Item = *mut VMCallerCheckedAnyfunc>,
-    ) -> Result<(), TrapCode> {
+    ) -> Result<(), Trap> {
         assert!(self.element_type() == TableElementType::Func);
 
         let elements = match self
@@ -276,7 +276,7 @@ impl Table {
             .and_then(|s| s.get_mut(..items.len()))
         {
             Some(elements) => elements,
-            None => return Err(TrapCode::TableOutOfBounds),
+            None => return Err(Trap::TableOutOfBounds),
         };
 
         for (item, slot) in items.zip(elements) {
@@ -290,14 +290,14 @@ impl Table {
     /// Fill `table[dst..dst + len]` with `val`.
     ///
     /// Returns a trap error on out-of-bounds accesses.
-    pub fn fill(&mut self, dst: u32, val: TableElement, len: u32) -> Result<(), TrapCode> {
+    pub fn fill(&mut self, dst: u32, val: TableElement, len: u32) -> Result<(), Trap> {
         let start = dst as usize;
         let end = start
             .checked_add(len as usize)
-            .ok_or_else(|| TrapCode::TableOutOfBounds)?;
+            .ok_or_else(|| Trap::TableOutOfBounds)?;
 
         if end > self.size() as usize {
-            return Err(TrapCode::TableOutOfBounds);
+            return Err(Trap::TableOutOfBounds);
         }
 
         debug_assert!(self.type_matches(&val));
@@ -412,7 +412,7 @@ impl Table {
         dst_index: u32,
         src_index: u32,
         len: u32,
-    ) -> Result<(), TrapCode> {
+    ) -> Result<(), Trap> {
         // https://webassembly.github.io/bulk-memory-operations/core/exec/instructions.html#exec-table-copy
 
         if src_index
@@ -422,7 +422,7 @@ impl Table {
                 .checked_add(len)
                 .map_or(true, |m| m > (*dst_table).size())
         {
-            return Err(TrapCode::TableOutOfBounds);
+            return Err(Trap::TableOutOfBounds);
         }
 
         debug_assert!(