rename POPFOO() to CX_POPFOO()

Rename all the context-popping macros such as POPBLOCK and POPSUB, by
giving them a CX_ prefix. (Do TOPBLOCK too).

This is principally to  deliberately break any existing non-core use of
these non-API macros, as their behaviour has changed in this branch.
In particular, POPBLOCK(cx) no longer decrements the cxt stack pointer
nor sets cx; instead, cx is now expected to already point to the stack
frame which POPBLOCK should process.

At the same time, giving them a CX_ prefix makes it clearer that these
are all part of a family of macros that manipulate the context stack.

The PUSHFOO() macros will be renamed in a later commit.

1 files changed, 1 insertions, 1 deletions

diff --git a/pp.c b/pp.c
index f4a7dcdc3c..c769f97549 100644
--- a/pp.c
+++ b/pp.c
@@ -6444,7 +6444,7 @@ PP(pp_coreargs)
 		PERL_CONTEXT *cx = CX_CUR();
 
                 assert(CxHASARGS(cx));
-                POPSUB_ARGS(cx);;
+                CX_POPSUB_ARGS(cx);;
 		cx->cx_type &= ~CXp_HASARGS;
 	    }
 	  }