Mark failing tests on ARM

Author: Amanieu

crates/intrinsic-test/missing_arm.txt

@@ -245,6 +245,55 @@ vrshrn_n_s64
 vrshrn_n_u16
 vrshrn_n_u32
 vrshrn_n_u64
-
 vshrq_n_u64
 vshr_n_u64
+
+# Failing tests: stdarch has incorrect results compared to Clang
+vqshlu_n_s16
+vqshlu_n_s32
+vqshlu_n_s64
+vqshlu_n_s8
+vqshluq_n_s16
+vqshluq_n_s32
+vqshluq_n_s64
+vqshluq_n_s8
+vsli_n_p16
+vsli_n_p8
+vsli_n_s16
+vsli_n_s32
+vsli_n_s64
+vsli_n_s8
+vsli_n_u16
+vsli_n_u32
+vsli_n_u64
+vsli_n_u8
+vsliq_n_p16
+vsliq_n_p8
+vsliq_n_s16
+vsliq_n_s32
+vsliq_n_s64
+vsliq_n_s8
+vsliq_n_u16
+vsliq_n_u32
+vsliq_n_u64
+vsliq_n_u8
+vsri_n_p16
+vsri_n_p8
+vsri_n_s16
+vsri_n_s32
+vsri_n_s64
+vsri_n_s8
+vsri_n_u16
+vsri_n_u32
+vsri_n_u64
+vsri_n_u8
+vsriq_n_p16
+vsriq_n_p8
+vsriq_n_s16
+vsriq_n_s32
+vsriq_n_s64
+vsriq_n_s8
+vsriq_n_u16
+vsriq_n_u32
+vsriq_n_u64
+vsriq_n_u8