ggml, ci : Windows ARM runner and build fixes (#5979)

* windows arm ci

* fix `error C2078: too many initializers` with ggml_vld1q_u32 macro for MSVC ARM64

* fix `warning C4146: unary minus operator applied to unsigned type, result still unsigned`

* fix `error C2065: '__fp16': undeclared identifier`

1 files changed, 2 insertions, 2 deletions

diff --git a/llama.cpp b/llama.cpp
index 110e509c..f61ea791 100644
--- a/llama.cpp
+++ b/llama.cpp
@@ -13980,7 +13980,7 @@ int32_t llama_token_to_piece(const struct llama_model * model, llama_token token
             } else if (llama_is_user_defined_token(model->vocab, token)) {
                 std::string result = model->vocab.id_to_token[token].text;
                 if (length < (int) result.length()) {
-                    return -result.length();
+                    return -(int) result.length();
                 }
                 memcpy(buf, result.c_str(), result.length());
                 return result.length();
@@ -14015,7 +14015,7 @@ int32_t llama_token_to_piece(const struct llama_model * model, llama_token token
             } else if (llama_is_user_defined_token(model->vocab, token)) {
                 std::string result = model->vocab.id_to_token[token].text;
                 if (length < (int) result.length()) {
-                    return -result.length();
+                    return -(int) result.length();
                 }
                 memcpy(buf, result.c_str(), result.length());
                 return result.length();