[Ada] Minor reformatting and some typo fixes

2020-06-10  Gary Dismukes  <dismukes@adacore.com>

gcc/ada/

	* einfo.ads: Minor reformatting of a comment.
	* exp_aggr.adb: Minor reformatting and a grammar correction.
	* exp_attr.adb: Minor reformatting and a typo fix in some
	comments.
	* sem_ch12.adb: Fix three typos in comments.

4 files changed, 14 insertions, 14 deletions

diff --git a/gcc/ada/einfo.ads b/gcc/ada/einfo.ads
index 277ca98..44cbe68 100644
--- a/gcc/ada/einfo.ads
+++ b/gcc/ada/einfo.ads
@@ -4180,10 +4180,10 @@ package Einfo is
 --       for the function case.
 
 --    Returns_By_Ref (Flag90)
---       Defined in subprogram type entities and functions. Set if a
---       function (or an access to function type) returns a result by
---       reference, either because its return type is a by-reference-type or
---       because said function explicitly uses the secondary stack.
+--       Defined in subprogram type entities and functions. Set if a function
+--       (or an access-to-function type) returns a result by reference, either
+--       because its return type is a by-reference-type or because the function
+--       explicitly uses the secondary stack.
 
 --    Reverse_Bit_Order (Flag164) [base type only]
 --       Defined in all record type entities. Set if entity has a Bit_Order
diff --git a/gcc/ada/exp_aggr.adb b/gcc/ada/exp_aggr.adb
index dd69297..3a74d06 100644
--- a/gcc/ada/exp_aggr.adb
+++ b/gcc/ada/exp_aggr.adb
@@ -316,8 +316,8 @@ package body Exp_Aggr is
    function Max_Aggregate_Size
      (Typ          : Entity_Id;
       Default_Size : Nat := 5000) return Nat;
-   --  Return the max size for a static aggregate for the given Typ.
-   --  Return Default_Size if no other special criteria triggers.
+   --  Return the max size for a static aggregate of the given Typ.
+   --  Return Default_Size if no other special criteria trigger.
 
    function Packed_Array_Aggregate_Handled (N : Node_Id) return Boolean;
    --  Given an array aggregate, this function handles the case of a packed
diff --git a/gcc/ada/exp_attr.adb b/gcc/ada/exp_attr.adb
index e907b8c..aa049fc 100644
--- a/gcc/ada/exp_attr.adb
+++ b/gcc/ada/exp_attr.adb
@@ -4855,13 +4855,13 @@ package body Exp_Attr is
          Rewrite (N,
            Make_If_Expression (Loc, New_List (
 
-             --  Generate a check for zero sized things like a null record with
+             --  Generate a check for zero-sized things like a null record with
              --  size zero or an array with zero length since they have no
              --  opportunity of overlapping.
 
-             --  Without this check a zero-sized object can trigger a false
-             --  runtime result if its compared against another object
-             --  in its declarative region due to the zero-sized object having
+             --  Without this check, a zero-sized object can trigger a false
+             --  runtime result if it's compared against another object in
+             --  its declarative region, due to the zero-sized object having
              --  the same address.
 
              Make_Or_Else (Loc,
@@ -4882,7 +4882,7 @@ package body Exp_Attr is
 
              New_Occurrence_Of (Standard_False, Loc),
 
-             --  Non-size zero overlap check
+             --  Non-zero-size overlap check
 
              Make_If_Expression (Loc, New_List (
                Cond,
diff --git a/gcc/ada/sem_ch12.adb b/gcc/ada/sem_ch12.adb
index b29c00b..80a8246 100644
--- a/gcc/ada/sem_ch12.adb
+++ b/gcc/ada/sem_ch12.adb
@@ -1753,7 +1753,7 @@ package body Sem_Ch12 is
 
                      --  Warn when an actual is a fixed-point with user-
                      --  defined promitives. The warning is superfluous
-                     --  if the fornal is private, because there can be
+                     --  if the formal is private, because there can be
                      --  no arithmetic operations in the generic so there
                      --  no danger of confusion.
 
@@ -12394,12 +12394,12 @@ package body Sem_Ch12 is
 
       --  Ada 2020: Verify that shared variable control aspects (RM C.6)
       --  that may be specified for the formal are obeyed by the actual.
-      --  If the fornal is a derived type the aspect specifications must match.
+      --  If the formal is a derived type the aspect specifications must match.
       --  NOTE: AI12-0282 implies that matching of aspects is required between
       --  formal and actual in all cases, but this is too restrictive.
       --  In particular it violates a language design rule: a limited private
       --  indefinite formal can be matched by any actual. The current code
-      --  reflects an older and more permissve version of RM C.6 (12/5).
+      --  reflects an older and more permissive version of RM C.6 (12/5).
 
       procedure Check_Shared_Variable_Control_Aspects is
       begin