feat(reflect): add Indirect function

Implements reflect.Indirect function to support pointer dereferencing.
This function returns the value that a pointer points to, or returns
the value unchanged if it's not a pointer.

Fixes #1354

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Co-authored-by: luoliwoshang <luoliwoshang@users.noreply.github.com>

runtime/internal/lib/reflect/value.go

@@ -1759,6 +1759,16 @@ func ValueOf(i any) Value {
 	return unpackEface(i)
 }
 
+// Indirect returns the value that v points to.
+// If v is a nil pointer, Indirect returns a zero Value.
+// If v is not a pointer, Indirect returns v.
+func Indirect(v Value) Value {
+	if v.Kind() != Pointer {
+		return v
+	}
+	return v.Elem()
+}
+
 // arrayAt returns the i-th element of p,
 // an array whose elements are eltSize bytes wide.
 // The array pointed at by p must have at least i+1 elements: