compiler_rt: Update x86_cpu_model.zig to latest zig master

- Use pointers in export builtin
- Update names for Type enum tag

lib/compiler_rt/x86_cpu_model.zig

@@ -31,9 +31,9 @@ comptime {
     const linkage: std.builtin.GlobalLinkage = common.linkage;
     const visibility: std.builtin.SymbolVisibility = if (linkage != .internal) .hidden else .default;
 
-    @export(cpu, .{ .name = "__cpu_model", .linkage = linkage, .visibility = visibility });
-    @export(cpu_extra_features, .{ .name = "__cpu_features2", .linkage = linkage, .visibility = visibility });
-    @export(init, .{ .name = "__cpu_indicator_init", .linkage = linkage, .visibility = visibility });
+    @export(&cpu, .{ .name = "__cpu_model", .linkage = linkage, .visibility = visibility });
+    @export(&cpu_extra_features, .{ .name = "__cpu_features2", .linkage = linkage, .visibility = visibility });
+    @export(&init, .{ .name = "__cpu_indicator_init", .linkage = linkage, .visibility = visibility });
 }
 
 var cpu: Model = .{};
@@ -55,7 +55,7 @@ fn init() callconv(.C) c_int {
         x86.detectNativeFeatures(&detected, builtin.os.tag);
 
         var features = std.mem.zeroes(FeatureSet);
-        inline for (@typeInfo(Target.x86.Feature).Enum.fields) |f| {
+        inline for (@typeInfo(Target.x86.Feature).@"enum".fields) |f| {
             const index: Target.Cpu.Feature.Set.Index = f.value;
             if (comptime !@hasField(Feature, f.name)) continue;
             if (detected.isEnabled(index)) setFeature(&features, @field(Feature, f.name));
@@ -120,7 +120,7 @@ const Model = extern struct {
 
 const FeatureSet = [feature_set_size]u32;
 comptime {
-    for (@typeInfo(Feature).Enum.fields) |f| {
+    for (@typeInfo(Feature).@"enum".fields) |f| {
         if (f.value >= @bitSizeOf(FeatureSet))
             @compileError(@import("std").fmt.comptimePrint("Feature.{s} ({}) bitindex too large", .{ f.name, f.value }));
     }
@@ -143,7 +143,7 @@ const Feature = @import("cpu_model/x86.zig").Feature;
 
 const feature_set_size = blk: {
     var max_index: comptime_int = 0;
-    for (@typeInfo(Feature).Enum.fields) |f| {
+    for (@typeInfo(Feature).@"enum".fields) |f| {
         if (f.value > max_index) max_index = f.value;
     }
     break :blk (max_index + 32) / 32;
@@ -169,7 +169,7 @@ comptime {
 
     var errors: []const u8 = "";
 
-    for (@typeInfo(Feature).Enum.fields) |field| {
+    for (@typeInfo(Feature).@"enum".fields) |field| {
         if (ignored.has(field.name)) {
             if (@hasField(Target.x86.Feature, field.name)) errors = errors ++ std.fmt.comptimePrint(
                 "\n  feature `{s}' present in std.Target.x86.Feature but marked for ignore in compiler-rt",