branches/innodb+: Revert some changes that make the code differ

from branches/zip.

btr_cur_optimistic_delete(): Split a too long line in the way it is
split in branches/zip.

buf_page_get_gen(): Add missing space in the function comment.

buf_print_io(): Restoer a removed space to the printout.

univ.i: Remove C++-style (or C99-style) comments.

buf0buf.h: Undo the white-space changes to the wrapper macros of
buf_page_get_gen().

ibuf_update_free_bits_low(): Revert the changes.  Restore the assertion
that this function must not be invoked on compressed pages.  The function
ibuf_update_free_bits_zip() is for compressed pages.

ibuf_insert_to_index_page(): Undo a white-space change.

btr/btr0cur.c

@@ -2897,7 +2897,8 @@ btr_cur_optimistic_delete(
 		ut_a(!page_zip || page_zip_validate(page_zip, page));
 #endif /* UNIV_ZIP_DEBUG */
 
-		if (dict_index_is_clust(cursor->index) || !page_is_leaf(page)) {
+		if (dict_index_is_clust(cursor->index)
+		    || !page_is_leaf(page)) {
 			/* The insert buffer does not handle
 			inserts to clustered indexes or to non-leaf
 			pages of secondary index B-trees. */

buf/buf0buf.c

@@ -1862,7 +1862,7 @@ buf_page_get_gen(
 	buf_block_t*	guess,	/* in: guessed block or NULL */
 	ulint		mode,	/* in: BUF_GET, BUF_GET_IF_IN_POOL,
 				BUF_GET_NO_LATCH, BUF_GET_NOWAIT or
-				BUF_GET_IF_IN_POOL_OR_WATCH*/
+				BUF_GET_IF_IN_POOL_OR_WATCH */
 	const char*	file,	/* in: file name */
 	ulint		line,	/* in: line where called */
 	mtr_t*		mtr)	/* in: mini-transaction */

ibuf/ibuf0ibuf.c

@@ -890,8 +890,10 @@ ibuf_update_free_bits_low(
 						performed to the page */
 	mtr_t*			mtr)		/* in/out: mtr */
 {
-	ulint	after;
 	ulint	before;
+	ulint	after;
+
+	ut_a(!buf_block_get_page_zip(block));
 
 	before = ibuf_index_page_calc_free_bits(0, max_ins_size);
 
@@ -3306,8 +3308,8 @@ ibuf_insert_to_index_page(
 		return;
 	}
 
-	low_match = page_cur_search(
-		block, index, entry, PAGE_CUR_LE, &page_cur);
+	low_match = page_cur_search(block, index, entry,
+				    PAGE_CUR_LE, &page_cur);
 
 	if (low_match == dtuple_get_n_fields(entry)) {
 		buf_block_t*	block;

include/buf0buf.h

@@ -174,15 +174,13 @@ error-prone programming not to set a latch, and it should be used
 with care. */
 #define buf_page_get_with_no_latch(SP, ZS, OF, MTR)	   buf_page_get_gen(\
 				SP, ZS, OF, RW_NO_LATCH, NULL,\
-				BUF_GET_NO_LATCH, \
-				__FILE__, __LINE__, MTR)
+				BUF_GET_NO_LATCH, __FILE__, __LINE__, MTR)
 /******************************************************************
 NOTE! The following macros should be used instead of buf_page_get_gen, to
 improve debugging. Only values RW_S_LATCH and RW_X_LATCH are allowed as LA! */
 #define buf_page_get_nowait(SP, ZS, OF, LA, MTR)	buf_page_get_gen(\
 				SP, ZS, OF, LA, NULL,\
-				BUF_GET_NOWAIT, \
-				__FILE__, __LINE__, MTR)
+				BUF_GET_NOWAIT, __FILE__, __LINE__, MTR)
 /******************************************************************
 NOTE! The following macros should be used instead of
 buf_page_optimistic_get_func, to improve debugging. Only values RW_S_LATCH and
@@ -268,7 +266,7 @@ buf_page_get_gen(
 	buf_block_t*	guess,	/* in: guessed block or NULL */
 	ulint		mode,	/* in: BUF_GET, BUF_GET_IF_IN_POOL,
 				BUF_GET_NO_LATCH, BUF_GET_NOWAIT or
-				BUF_GET_IF_IN_POOL_WATCH*/
+				BUF_GET_IF_IN_POOL_WATCH */
 	const char*	file,	/* in: file name */
 	ulint		line,	/* in: line where called */
 	mtr_t*		mtr);	/* in: mini-transaction */

include/univ.i

@@ -160,9 +160,6 @@ operations (very slow); also UNIV_DEBUG must be defined */
 						for compressed pages */
 #endif
 
-//#define UNIV_DEBUG
-//#define UNIV_SYNC_DEBUG
-//#define UNIV_IBUF_DEBUG
 #define UNIV_BTR_DEBUG				/* check B-tree links */
 #define UNIV_LIGHT_MEM_DEBUG			/* light memory debugging */