Make atomic subs searchable

Author: Jan-Olof Hendig

doc/Type/atomicint.pod6

@@ -44,7 +44,7 @@ must be used in conjunction with the atomic operations.
 
 =head1 Routines
 
-=head2 atomic-assign
+=head2 sub atomic-assign
 
 Defined as:
 
@@ -59,7 +59,7 @@ silently truncated. The C<atomic-assign> routine ensures that any required
 barriers are performed such that the changed value will be "published" to
 other threads.
 
-=head2 atomic-fetch
+=head2 sub atomic-fetch
 
 Defined as:
 
@@ -85,7 +85,7 @@ It would be legal for a compiler to observe that C<$i> is not updated in the
 loop, and so lift the read out of the loop, thus causing the program to never
 terminate.
 
-=head2 atomic-fetch-inc
+=head2 sub atomic-fetch-inc
 
 Defined as:
 
@@ -96,7 +96,7 @@ hardware-provided atomic operations. Since the operation is atomic, it is safe
 to use without acquiring a lock. Returns the value as seen before incrementing
 it. Overflow will wrap around silently.
 
-=head2 atomic-fetch-dec
+=head2 sub atomic-fetch-dec
 
 Defined as:
 
@@ -107,7 +107,7 @@ hardware-provided atomic operations. Since the operation is atomic, it is safe
 to use without acquiring a lock. Returns the value as seen before decrementing
 it. Overflow will wrap around silently.
 
-=head2 atomic-fetch-add
+=head2 sub atomic-fetch-add
 
 Defined as:
 
@@ -122,7 +122,7 @@ unbox to a 64-bit integer, an exception will be thrown. If C<$value> otherwise
 overflows C<atomicint> then it will be silently truncated before the addition
 is performed.
 
-=head2 atomic-fetch-sub
+=head2 sub atomic-fetch-sub
 
 Defined as:
 
@@ -137,7 +137,7 @@ too big to unbox to a 64-bit integer, an exception will be thrown. If C<$value>
 otherwise overflows C<atomicint> then it will be silently truncated before the
 subtraction is performed.
 
-=head2 cas
+=head2 sub cas
 
 Defined as: