Re-order struct yy_parser to save space on most systems.

Re-order struct yy_stack_frame to save space on LP64 systems.

p4raw-id: //depot/perl@31618

parser.h

@@ -14,8 +14,8 @@
 typedef struct {
     YYSTYPE val;    /* semantic value */
     short   state;
-    AV	    *comppad; /* value of PL_comppad when this value was created */
     I32     savestack_ix;	/* size of savestack at this state */
+    AV	    *comppad; /* value of PL_comppad when this value was created */
 #ifdef DEBUGGING
     const char  *name; /* token/rule name for -Dpv */
 #endif
@@ -74,11 +74,10 @@ typedef struct yy_parser {
     line_t	copline;	/* current line number */
     U16		in_my;		/* we're compiling a "my"/"our" declaration */
     U8		lex_state;	/* next token is determined */
-    /* space for a U8 here */
+    U8		error_count;	/* how many compile errors so far, max 10 */
     HV		*in_my_stash;	/* declared class of this "my" declaration */
     PerlIO	*rsfp;		/* current source file pointer */
     AV		*rsfp_filters;	/* holds chain of active source filters */
-    U8		error_count;	/* how many compile errors so far, max 10 */
 
 #ifdef PERL_MAD
     SV		*endwhite;