sem_ch9.adb, [...]: Minor reformatting and typo fixes.

2016-06-16  Gary Dismukes  <dismukes@adacore.com>

	* sem_ch9.adb, sem_util.ads, sem_res.adb: Minor reformatting and typo
	fixes.

From-SVN: r237509

gcc/ada/ChangeLog

+2016-06-16  Gary Dismukes  <dismukes@adacore.com>
+
+	* sem_ch9.adb, sem_util.ads, sem_res.adb: Minor reformatting and typo
+	fixes.
+
 2016-06-16  Javier Miranda  <miranda@adacore.com>
 
 	* sem_res.adb (Resolve): Under relaxed RM semantics silently

gcc/ada/sem_ch9.adb

@@ -1996,9 +1996,10 @@ package body Sem_Ch9 is
       --  unless the protected type is declared in a private part of a package
       --  of the runtime. With this exception, the Suspension_Object from
       --  Ada.Synchronous_Task_Control can be implemented using a protected
-      --  without triggering violations of No_Local_Protected_Objects when the
-      --  user locally declares such an object. This may look like a trick but
-      --  the user doesn't have to know how Suspension_Object is implemented.
+      --  object without triggering violations of No_Local_Protected_Objects
+      --  when the user locally declares such an object. This may look like a
+      --  trick, but the user doesn't have to know how Suspension_Object is
+      --  implemented.
 
       if In_Private_Part (Current_Scope)
         and then Is_Internal_File_Name (Unit_File_Name (Current_Sem_Unit))

gcc/ada/sem_res.adb

@@ -2686,7 +2686,7 @@ package body Sem_Res is
                return;
 
             --  Under relaxed RM semantics silently replace occurrences of null
-            --  by System.Address_Null
+            --  by System.Address_Null.
 
             elsif Null_To_Null_Address_Convert_OK (N, Typ) then
                Replace_Null_By_Null_Address (N);
@@ -2694,7 +2694,7 @@ package body Sem_Res is
                return;
             end if;
 
-            --  That special Allow_Integer_Address check did not appply, so we
+            --  That special Allow_Integer_Address check did not apply, so we
             --  have a real type error. If an error message was issued already,
             --  Found got reset to True, so if it's still False, issue standard
             --  Wrong_Type message.

gcc/ada/sem_util.ads

@@ -1937,8 +1937,8 @@ package Sem_Util is
      (N   : Node_Id;
       Typ : Entity_Id := Empty) return Boolean;
    --  Return True if we are compiling in relaxed RM semantics mode and:
-   --   1) N is a N_Null node and Typ is a decendant of System.Address, or
-   --   2) N is a comparison operator, one of the operands is null and the
+   --   1) N is a N_Null node and Typ is a descendant of System.Address, or
+   --   2) N is a comparison operator, one of the operands is null, and the
    --      type of the other operand is a descendant of System.Address.
 
    function Object_Access_Level (Obj : Node_Id) return Uint;
@@ -2037,8 +2037,8 @@ package Sem_Util is
    --  Determine whether entity Id is referenced within expression Expr
 
    function References_Generic_Formal_Type (N : Node_Id) return Boolean;
-   --  Returns True if the expression Expr contains any references to a
-   --  generic type. This can only happen within a generic template.
+   --  Returns True if the expression Expr contains any references to a generic
+   --  type. This can only happen within a generic template.
 
    procedure Remove_Homonym (E : Entity_Id);
    --  Removes E from the homonym chain
@@ -2054,7 +2054,7 @@ package Sem_Util is
 
    procedure Replace_Null_By_Null_Address (N : Node_Id);
    --  N is N_Null or a binary comparison operator, we are compiling in relaxed
-   --  RM semantics mode and one of the operands is null. Replace null by
+   --  RM semantics mode, and one of the operands is null. Replace null with
    --  System.Null_Address.
 
    function Rep_To_Pos_Flag (E : Entity_Id; Loc : Source_Ptr) return Node_Id;