x86_64: fix error_set_has_value of inferred error sets

Author: jacobly0

src/arch/x86_64/CodeGen.zig

@@ -116306,10 +116306,18 @@ const Select = struct {
                 },
                 .frame => |frame_index| .{ try cg.tempInit(spec.type, .{ .load_frame = .{ .index = frame_index } }), true },
                 .lazy_symbol => |lazy_symbol_spec| {
+                    const zcu = pt.zcu;
+                    const ip = &zcu.intern_pool;
                     const ty = if (lazy_symbol_spec.ref == .none) spec.type else lazy_symbol_spec.ref.typeOf(s);
                     const lazy_symbol: link.File.LazySymbol = .{
                         .kind = lazy_symbol_spec.kind,
-                        .ty = ty.toIntern(),
+                        .ty = switch (ip.indexToKey(ty.toIntern())) {
+                            .inferred_error_set_type => |func_index| switch (ip.funcIesResolvedUnordered(func_index)) {
+                                .none => unreachable, // unresolved inferred error set
+                                else => |ty_index| ty_index,
+                            },
+                            else => ty.toIntern(),
+                        },
                     };
                     return .{ try cg.tempInit(.usize, .{ .lea_symbol = .{
                         .sym_index = if (cg.bin_file.cast(.elf)) |elf_file|