patch 9.1.0594: Unnecessary redraw when setting 'winfixbuf'

Problem:  Unnecessary redraw when setting 'winfixbuf'.
Solution: Remove P_RWIN flag. (zeertzjq)

closes: #15283

Signed-off-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>

Author: zeertzjq

src/optiondefs.h

@@ -2855,13 +2855,13 @@ static struct vimoption options[] =
     {"window",	    "wi",   P_NUM|P_VI_DEF,
 			    (char_u *)&p_window, PV_NONE, did_set_window, NULL,
 			    {(char_u *)0L, (char_u *)0L} SCTX_INIT},
-    {"winfixbuf", "wfb", P_BOOL|P_VI_DEF|P_RWIN,
+    {"winfixbuf", "wfb",    P_BOOL|P_VI_DEF,
 			    (char_u *)VAR_WIN, PV_WFB, NULL, NULL,
 			    {(char_u *)FALSE, (char_u *)0L} SCTX_INIT},
     {"winfixheight", "wfh", P_BOOL|P_VI_DEF|P_RSTAT,
 			    (char_u *)VAR_WIN, PV_WFH, NULL, NULL,
 			    {(char_u *)FALSE, (char_u *)0L} SCTX_INIT},
-    {"winfixwidth", "wfw", P_BOOL|P_VI_DEF|P_RSTAT,
+    {"winfixwidth", "wfw",  P_BOOL|P_VI_DEF|P_RSTAT,
 			    (char_u *)VAR_WIN, PV_WFW, NULL, NULL,
 			    {(char_u *)FALSE, (char_u *)0L} SCTX_INIT},
     {"winheight",   "wh",   P_NUM|P_VI_DEF,
@@ -2871,7 +2871,7 @@ static struct vimoption options[] =
     {"winminheight", "wmh", P_NUM|P_VI_DEF,
 			    (char_u *)&p_wmh, PV_NONE, did_set_winminheight, NULL,
 			    {(char_u *)1L, (char_u *)0L} SCTX_INIT},
-    {"winminwidth", "wmw", P_NUM|P_VI_DEF,
+    {"winminwidth", "wmw",  P_NUM|P_VI_DEF,
 			    (char_u *)&p_wmw, PV_NONE, did_set_winminwidth, NULL,
 			    {(char_u *)1L, (char_u *)0L} SCTX_INIT},
     {"winptydll", NULL,	    P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,

src/testdir/test_goto.vim

@@ -296,6 +296,7 @@ func Test_gd_string()
       return x;
     }
   [CODE]
+
   call XTest_goto_decl('gd', lines, 4, 7)
 endfunc
 
@@ -320,14 +321,14 @@ func Test_set_options_keep_col()
   let pos = getcurpos()
   normal j
   set invhlsearch spell spelllang=en,cjk spelloptions=camel textwidth=80
-  set cursorline cursorcolumn cursorlineopt=line colorcolumn=+1
+  set cursorline cursorcolumn cursorlineopt=line colorcolumn=+1 winfixbuf
   set background=dark
   set background=light
   normal k
   call assert_equal(pos, getcurpos())
   bwipe!
   set hlsearch& spell& spelllang& spelloptions& textwidth&
-  set cursorline& cursorcolumn& cursorlineopt& colorcolumn&
+  set cursorline& cursorcolumn& cursorlineopt& colorcolumn& winfixbuf&
   set background&
 endfunc
 

src/version.c

@@ -704,6 +704,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    594,
 /**/
     593,
 /**/