Remove ada_ternop_slice

ada_ternop_slice can be merged with its sole caller.

Approved-By: Simon Marchi <simon.marchi@efficios.com>

gdb/ada-exp.h

diff --git a/gdb/ada-exp.h b/gdb/ada-exp.h
index d797cda..6703a54 100644
--- a/gdb/ada-exp.h
+++ b/gdb/ada-exp.h
@@ -38,11 +38,6 @@ extern struct value *ada_mult_binop (struct type *expect_type,
 				     struct expression *exp,
 				     enum noside noside, enum exp_opcode op,
 				     struct value *arg1, struct value *arg2);
-extern struct value *ada_ternop_slice (struct expression *exp,
-				       enum noside noside,
-				       struct value *array,
-				       struct value *low_bound_val,
-				       struct value *high_bound_val);
 extern struct value *ada_binop_in_bounds (struct expression *exp,
 					  enum noside noside,
 					  struct value *arg1,
@@ -287,13 +282,7 @@ class ada_ternop_slice_operation
 
   value *evaluate (struct type *expect_type,
 		   struct expression *exp,
-		   enum noside noside) override
-  {
-    value *array = std::get<0> (m_storage)->evaluate (nullptr, exp, noside);
-    value *low = std::get<1> (m_storage)->evaluate (nullptr, exp, noside);
-    value *high = std::get<2> (m_storage)->evaluate (nullptr, exp, noside);
-    return ada_ternop_slice (exp, noside, array, low, high);
-  }
+		   enum noside noside) override;
 
   enum exp_opcode opcode () const override
   { return TERNOP_SLICE; }

gdb/ada-lang.c

diff --git a/gdb/ada-lang.c b/gdb/ada-lang.c
index 253b85e..323abee 100644
--- a/gdb/ada-lang.c
+++ b/gdb/ada-lang.c
@@ -10198,16 +10198,19 @@ ada_binop_equal_operation::evaluate (struct type *expect_type,
   return value_from_longest (type, tem);
 }
 
-} /* namespace expr */
-
-/* A helper function for TERNOP_SLICE.  */
+/* Implement TERNOP_SLICE.  */
 
 value *
-ada_ternop_slice (struct expression *exp,
-		  enum noside noside,
-		  struct value *array, struct value *low_bound_val,
-		  struct value *high_bound_val)
+ada_ternop_slice_operation::evaluate (struct type *expect_type,
+				      struct expression *exp,
+				      enum noside noside)
 {
+  value *array = std::get<0> (m_storage)->evaluate (nullptr, exp, noside);
+  value *low_bound_val
+    = std::get<1> (m_storage)->evaluate (nullptr, exp, noside);
+  value *high_bound_val
+    = std::get<2> (m_storage)->evaluate (nullptr, exp, noside);
+
   LONGEST low_bound;
   LONGEST high_bound;
 
@@ -10281,6 +10284,8 @@ ada_ternop_slice (struct expression *exp,
 			    longest_to_int (high_bound));
 }
 
+} /* namespace expr */
+
 /* A helper function for BINOP_IN_BOUNDS.  */
 
 value *