introduce std.event.fs for async file system functions

CMakeLists.txt

@@ -460,11 +460,14 @@ set(ZIG_STD_FILES
     "empty.zig"
     "event.zig"
     "event/channel.zig"
+    "event/fs.zig"
     "event/future.zig"
     "event/group.zig"
     "event/lock.zig"
     "event/locked.zig"
     "event/loop.zig"
+    "event/rwlock.zig"
+    "event/rwlocked.zig"
     "event/tcp.zig"
     "fmt/errol/enum3.zig"
     "fmt/errol/index.zig"
@@ -553,6 +556,7 @@ set(ZIG_STD_FILES
     "math/tanh.zig"
     "math/trunc.zig"
     "mem.zig"
+    "mutex.zig"
     "net.zig"
     "os/child_process.zig"
     "os/darwin.zig"

doc/docgen.zig

@@ -370,9 +370,9 @@ fn genToc(allocator: *mem.Allocator, tokenizer: *Tokenizer) !Toc {
                             .n = header_stack_size,
                         },
                     });
-                    if (try urls.put(urlized, tag_token)) |other_tag_token| {
+                    if (try urls.put(urlized, tag_token)) |entry| {
                         parseError(tokenizer, tag_token, "duplicate header url: #{}", urlized) catch {};
-                        parseError(tokenizer, other_tag_token, "other tag here") catch {};
+                        parseError(tokenizer, entry.value, "other tag here") catch {};
                         return error.ParseError;
                     }
                     if (last_action == Action.Open) {

src-self-hosted/codegen.zig

@@ -19,8 +19,8 @@ pub async fn renderToLlvm(comp: *Compilation, fn_val: *Value.Fn, code: *ir.Code)
     var output_path = try await (async comp.createRandomOutputPath(comp.target.objFileExt()) catch unreachable);
     errdefer output_path.deinit();
 
-    const llvm_handle = try comp.event_loop_local.getAnyLlvmContext();
-    defer llvm_handle.release(comp.event_loop_local);
+    const llvm_handle = try comp.zig_compiler.getAnyLlvmContext();
+    defer llvm_handle.release(comp.zig_compiler);
 
     const context = llvm_handle.node.data;