Wasm/runtime: put back caml_string_of_array

Brr is using this function. This is an alias for caml_string_of_uint8_array.

Author: vouillon

CHANGES.md

@@ -4,6 +4,9 @@
 * Compiler: exit-loop-early in more cases (#2077)
 * Compiler/wasm: omit code pointer from closures when not used (#2059)
 
+## Bug fixes
+* Runtime/wasm: add back legacy function caml_string_of_array (#2081)
+
 # 6.1.1 (2025-07-07) - Lille
 
 ## Bug fixes

runtime/wasm/bigarray.wat

@@ -2025,6 +2025,7 @@
       (ref.i31 (i32.const 0)))
 
    (export "caml_bytes_of_uint8_array" (func $caml_string_of_uint8_array))
+   (export "caml_string_of_array" (func $caml_string_of_uint8_array)) ;; Used by brr
    (func $caml_string_of_uint8_array (export "caml_string_of_uint8_array")
       (param (ref eq)) (result (ref eq))
       ;; used to convert a typed array to a string