wasi preview 2 support (#4027)

* all: wasip2 support

Co-authored-by: Randy Reddig <randy.reddig@fastly.com>

src/internal/wasi/cli/v0.2.0/stderr/empty.s

@@ -0,0 +1,3 @@
+// This file exists for testing this package without WebAssembly,
+// allowing empty function bodies with a //go:wasmimport directive.
+// See https://pkg.go.dev/cmd/compile for more information.

src/internal/wasi/cli/v0.2.0/stderr/stderr.wit.go

@@ -0,0 +1,26 @@
+// Code generated by wit-bindgen-go. DO NOT EDIT.
+
+//go:build !wasip1
+
+// Package stderr represents the imported interface "wasi:cli/stderr@0.2.0".
+package stderr
+
+import (
+	"github.com/ydnar/wasm-tools-go/cm"
+	"internal/wasi/io/v0.2.0/streams"
+)
+
+// GetStderr represents the imported function "get-stderr".
+//
+//	get-stderr: func() -> output-stream
+//
+//go:nosplit
+func GetStderr() (result streams.OutputStream) {
+	result0 := wasmimport_GetStderr()
+	result = cm.Reinterpret[streams.OutputStream]((uint32)(result0))
+	return
+}
+
+//go:wasmimport wasi:cli/stderr@0.2.0 get-stderr
+//go:noescape
+func wasmimport_GetStderr() (result0 uint32)