Remove source_loc from TrapInformation

Turns out this wasn't needed anywhere! Additionally we can construct it
from `InstructionAddressMap` anyway. There's so many pieces of trap
information that it's best to keep these structures small as well.

crates/cranelift/src/lib.rs

@@ -195,12 +195,11 @@ impl binemit::TrapSink for TrapSink {
  fn trap(
  &mut self,
  code_offset: binemit::CodeOffset,
- source_loc: ir::SourceLoc,
+ _source_loc: ir::SourceLoc,
  trap_code: ir::TrapCode,
  ) {
  self.traps.push(TrapInformation {
  code_offset,
- source_loc,
  trap_code,
  });
  }

crates/environ/src/compilation.rs

@@ -61,8 +61,6 @@ pub enum RelocationTarget {
 pub struct TrapInformation {
  /// The offset of the trapping instruction in native code. It is relative to the beginning of the function.
  pub code_offset: binemit::CodeOffset,
- /// Location of trapping instruction in WebAssembly binary module.
- pub source_loc: ir::SourceLoc,
  /// Code of the trap.
  pub trap_code: ir::TrapCode,
 }

crates/lightbeam/wasmtime/src/lib.rs

@@ -165,12 +165,11 @@ impl binemit::TrapSink for TrapSink {
  fn trap(
  &mut self,
  code_offset: binemit::CodeOffset,
- source_loc: ir::SourceLoc,
+ _source_loc: ir::SourceLoc,
  trap_code: ir::TrapCode,
  ) {
  self.traps.push(TrapInformation {
  code_offset,
- source_loc,
  trap_code,
  });
  }