patch 8.2.4836: Vim9: some lines not covered by tests

Problem:    Vim9: some lines not covered by tests.
Solution:   Remove dead code.  Add disassemble tests.
diff --git a/src/testdir/test_vim9_disassemble.vim b/src/testdir/test_vim9_disassemble.vim
index 086522e..363d731 100644
--- a/src/testdir/test_vim9_disassemble.vim
+++ b/src/testdir/test_vim9_disassemble.vim
@@ -265,6 +265,7 @@
 
 def s:PutRange()
   :$-2put a
+  :$-3put! b
 enddef
 
 def Test_disassemble_put_range()
@@ -273,6 +274,10 @@
         ' :$-2put a\_s*' ..
         '\d RANGE $-2\_s*' ..
         '\d PUT a range\_s*' ..
+
+        ' :$-3put! b\_s*' ..
+        '\d RANGE $-3\_s*' ..
+        '\d PUT b above range\_s*' ..
         '\d RETURN void',
         res)
 enddef
@@ -684,6 +689,10 @@
   unlet g:somevar
   unlet! g:somevar
   unlet $SOMEVAR
+
+  var l = [1, 2, 3]
+  unlet l[2]
+  unlet l[0 : 1]
 enddef
 
 def Test_disassemble_unlet()
@@ -697,13 +706,33 @@
         'unlet! g:somevar\_s*' ..
         '\d UNLET! g:somevar\_s*' ..
         'unlet $SOMEVAR\_s*' ..
-        '\d UNLETENV $SOMEVAR\_s*',
+        '\d UNLETENV $SOMEVAR\_s*' ..
+
+        'var l = \[1, 2, 3]\_s*' ..
+        '\d\+ PUSHNR 1\_s*' ..
+        '\d\+ PUSHNR 2\_s*' ..
+        '\d\+ PUSHNR 3\_s*' ..
+        '\d\+ NEWLIST size 3\_s*' ..
+        '\d\+ SETTYPE list<number>\_s*' ..
+        '\d\+ STORE $0\_s*' ..
+
+        'unlet l\[2]\_s*' ..
+        '\d\+ PUSHNR 2\_s*' ..
+        '\d\+ LOAD $0\_s*' ..
+        '\d\+ UNLETINDEX\_s*' ..
+
+        'unlet l\[0 : 1]\_s*' ..
+        '\d\+ PUSHNR 0\_s*' ..
+        '\d\+ PUSHNR 1\_s*' ..
+        '\d\+ LOAD $0\_s*' ..
+        '\d\+ UNLETRANGE\_s*',
         res)
 enddef
 
 def s:LockLocal()
   var d = {a: 1}
   lockvar d.a
+  const nr = 22
 enddef
 
 def Test_disassemble_lock_local()
@@ -717,7 +746,12 @@
         '\d STORE $0\_s*' ..
         'lockvar d.a\_s*' ..
         '\d LOAD $0\_s*' ..
-        '\d LOCKUNLOCK lockvar 2 d.a\_s*',
+        '\d LOCKUNLOCK lockvar 2 d.a\_s*' ..
+
+        'const nr = 22\_s*' ..
+        '\d\+ PUSHNR 22\_s*' ..
+        '\d\+ LOCKCONST\_s*' ..
+        '\d\+ STORE $1',
         res)
 enddef
 
@@ -2186,6 +2220,33 @@
         res)
 enddef
 
+def s:StoreRange()
+  var l = [1, 2]
+  l[0 : 1] = [7, 8]
+enddef
+
+def Test_disassemble_store_range()
+  var res = execute('disass s:StoreRange')
+  assert_match('\<SNR>\d*_StoreRange\_s*' ..
+        'var l = \[1, 2]\_s*' ..
+        '\d PUSHNR 1\_s*' ..
+        '\d PUSHNR 2\_s*' ..
+        '\d NEWLIST size 2\_s*' ..
+        '\d SETTYPE list<number>\_s*' ..
+        '\d STORE $0\_s*' ..
+
+        'l\[0 : 1] = \[7, 8]\_s*' ..
+        '\d\+ PUSHNR 7\_s*' ..
+        '\d\+ PUSHNR 8\_s*' ..
+        '\d\+ NEWLIST size 2\_s*' ..
+        '\d\+ PUSHNR 0\_s*' ..
+        '\d\+ PUSHNR 1\_s*' ..
+        '\d\+ LOAD $0\_s*' ..
+        '\d\+ STORERANGE\_s*' ..
+        '\d\+ RETURN void',
+        res)
+enddef
+
 def s:Echomsg()
   echomsg 'some' 'message'
   echoconsole 'nothing'
diff --git a/src/version.c b/src/version.c
index fa0303c..53afc37 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4836,
+/**/
     4835,
 /**/
     4834,
diff --git a/src/vim9.h b/src/vim9.h
index c92b05f..3b14ffc 100644
--- a/src/vim9.h
+++ b/src/vim9.h
@@ -239,7 +239,6 @@
     JUMP_NEVER,
     JUMP_IF_FALSE,		// pop and jump if false
     JUMP_AND_KEEP_IF_TRUE,	// jump if top of stack is truthy, drop if not
-    JUMP_AND_KEEP_IF_FALSE,	// jump if top of stack is falsy, drop if not
     JUMP_IF_COND_TRUE,		// jump if top of stack is true, drop if not
     JUMP_IF_COND_FALSE,		// jump if top of stack is false, drop if not
 } jumpwhen_T;
diff --git a/src/vim9execute.c b/src/vim9execute.c
index 7a65be3..4646968 100644
--- a/src/vim9execute.c
+++ b/src/vim9execute.c
@@ -3788,9 +3788,7 @@
 			}
 			else
 			    jump = tv2bool(tv);
-			if (when == JUMP_IF_FALSE
-					     || when == JUMP_AND_KEEP_IF_FALSE
-					     || when == JUMP_IF_COND_FALSE)
+			if (when == JUMP_IF_FALSE || when == JUMP_IF_COND_FALSE)
 			    jump = !jump;
 			if (when == JUMP_IF_FALSE || !jump)
 			{
@@ -5662,16 +5660,9 @@
 							 iptr->isn_arg.number);
 		break;
 	    case ISN_STOREOUTER:
-		{
-		if (iptr->isn_arg.number < 0)
-		    smsg("%s%4d STOREOUTEr level %d arg[%d]", pfx, current,
-			    iptr->isn_arg.outer.outer_depth,
-			    iptr->isn_arg.outer.outer_idx + STACK_FRAME_SIZE);
-		else
-		    smsg("%s%4d STOREOUTER level %d $%d", pfx, current,
-			    iptr->isn_arg.outer.outer_depth,
-			    iptr->isn_arg.outer.outer_idx);
-		}
+		smsg("%s%4d STOREOUTER level %d $%d", pfx, current,
+			iptr->isn_arg.outer.outer_depth,
+			iptr->isn_arg.outer.outer_idx);
 		break;
 	    case ISN_STOREV:
 		smsg("%s%4d STOREV v:%s", pfx, current,
@@ -5935,9 +5926,6 @@
 			case JUMP_IF_FALSE:
 			    when = "JUMP_IF_FALSE";
 			    break;
-			case JUMP_AND_KEEP_IF_FALSE:
-			    when = "JUMP_AND_KEEP_IF_FALSE";
-			    break;
 			case JUMP_IF_COND_FALSE:
 			    when = "JUMP_IF_COND_FALSE";
 			    break;