AArch32: fix bootstrap failure

[Alex Coplan]

Hello,

The attached patch fixes a bootstrap failure on AArch32 introduced by
https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=308bc496884706af4b3077171cbac684c7a6f7c6

This makes the declaration of arm_add_stmt_cost match the definition, and 
removes the redundant
class keyword from the definition.

Testing:
  * Bootstrap on arm-linux-gnueabihf.

Thanks,
Alex

---

gcc/ChangeLog:

2020-05-07  Alex Coplan  <alex.cop...@arm.com>

        * config/arm/arm.c (arm_add_stmt_cost): Fix declaration, remove class 
from definition.

diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c
index bbd7dc5316c..d50781953c0 100644
--- a/gcc/config/arm/arm.c
+++ b/gcc/config/arm/arm.c
@@ -306,7 +306,7 @@ static bool aarch_macro_fusion_pair_p (rtx_insn*, 
rtx_insn*);
 static int arm_builtin_vectorization_cost (enum vect_cost_for_stmt 
type_of_cost,
                                           tree vectype,
                                           int misalign ATTRIBUTE_UNUSED);
-static unsigned arm_add_stmt_cost (void *data, int count,
+static unsigned arm_add_stmt_cost (vec_info *vinfo, void *data, int count,
                                   enum vect_cost_for_stmt kind,
                                   struct _stmt_vec_info *stmt_info,
                                   int misalign,
@@ -12131,7 +12131,7 @@ arm_builtin_vectorization_cost (enum vect_cost_for_stmt 
type_of_cost,
 /* Implement targetm.vectorize.add_stmt_cost.  */
 
 static unsigned
-arm_add_stmt_cost (class vec_info *vinfo, void *data, int count,
+arm_add_stmt_cost (vec_info *vinfo, void *data, int count,
                   enum vect_cost_for_stmt kind,
                   struct _stmt_vec_info *stmt_info, int misalign,
                   enum vect_cost_model_location where)