make self-hosted the default compiler

stage1 is available behind the -fstage1 flag.

closes ziglang#89

Author: andrewrk

safety/empty slice with sentinel out of bounds.zig

@@ -2,7 +2,7 @@ const std = @import("std");
 
 pub fn panic(message: []const u8, stack_trace: ?*std.builtin.StackTrace) noreturn {
     _ = stack_trace;
-    if (std.mem.eql(u8, message, "attempt to index out of bound: index 1, len 0")) {
+    if (std.mem.eql(u8, message, "index out of bounds: index 1, len 0")) {
         std.process.exit(0);
     }
     std.process.exit(1);

safety/out of bounds slice access.zig

@@ -2,20 +2,20 @@ const std = @import("std");
 
 pub fn panic(message: []const u8, stack_trace: ?*std.builtin.StackTrace) noreturn {
     _ = stack_trace;
-    if (std.mem.eql(u8, message, "attempt to index out of bound: index 4, len 4")) {
+    if (std.mem.eql(u8, message, "index out of bounds: index 4, len 4")) {
         std.process.exit(0);
     }
     std.process.exit(1);
 }
 pub fn main() !void {
-    const a = [_]i32{1, 2, 3, 4};
+    const a = [_]i32{ 1, 2, 3, 4 };
     baz(bar(&a));
     return error.TestFailed;
 }
 fn bar(a: []const i32) i32 {
     return a[4];
 }
-fn baz(_: i32) void { }
+fn baz(_: i32) void {}
 // run
 // backend=llvm
 // target=native

safety/slice with sentinel out of bounds - runtime len.zig

@@ -2,7 +2,7 @@ const std = @import("std");
 
 pub fn panic(message: []const u8, stack_trace: ?*std.builtin.StackTrace) noreturn {
     _ = stack_trace;
-    if (std.mem.eql(u8, message, "attempt to index out of bound: index 5, len 4")) {
+    if (std.mem.eql(u8, message, "index out of bounds: index 5, len 4")) {
         std.process.exit(0);
     }
     std.process.exit(1);

safety/slice with sentinel out of bounds.zig

@@ -2,7 +2,7 @@ const std = @import("std");
 
 pub fn panic(message: []const u8, stack_trace: ?*std.builtin.StackTrace) noreturn {
     _ = stack_trace;
-    if (std.mem.eql(u8, message, "attempt to index out of bound: index 5, len 4")) {
+    if (std.mem.eql(u8, message, "index out of bounds: index 5, len 4")) {
         std.process.exit(0);
     }
     std.process.exit(1);