test-revert: replace 'removed' in working copy with 'untracked-deleted'

The 'wccontent' variable has eight different states, four of them
tracked, and the other four untracked (at least when the file existed
in the parent revision). Among these eight states, 'removed' sticks
out by lacking the 'untracked-' prefix despite resulting in an
untracked state. To make the symmetry clearer, and to prepare for
future patches, rename 'removed' to 'untracked-deleted', which is
exactly what it is.

Note that, unlike 'remove', 'deleted' is configured in
gen-revert-cases.py to have content in the working directory and that
that content is instead expected to be removed in the test script.
However, no changes are needed to the test script, since it already
contains 'hg forget *untracked*' and 'rm *deleted*', which together
have the same effect as 'hg remove'.

See additional motivation in earlier patch.

tests/test-revert.t

@@ -453,14 +453,13 b' Write the python script to disk'
   >     'revert': lambda cc: cc[0],
   >     # wc: file exist with a content different from base and parent
   >     'wc': lambda cc: 'wc',
-  >     # removed: file is missing and marked as untracked
-  >     'removed': lambda cc: None,
   >     # deleted: file is recorded as tracked but missing
   >     #          rely on file deletion outside of this script
   >     'deleted': lambda cc:'TOBEDELETED',
   > }
   > # untracked-X is a version of X where the file is not tracked (? unknown)
   > wccontent['untracked-clean'] = wccontent['clean']
+  > wccontent['untracked-deleted'] = wccontent['deleted']
   > wccontent['untracked-revert'] = wccontent['revert']
   > wccontent['untracked-wc'] = wccontent['wc']
   > 
@@ -472,7 +471,7 b' Write the python script to disk'
   >             continue
   >         if not ctxvalue[0] and 'revert' in wckey:
   >             continue
-  >         if not ctxvalue[1] and ('removed' in wckey or 'deleted' in wckey):
+  >         if not ctxvalue[1] and 'deleted' in wckey:
   >             continue
   >         filename = "%s_%s" % (ctxkey, wckey)
   >         combination.append((filename, ctxkey, wckey))
@@ -514,14 +513,14 b' check list of planned files'
   $ python gen-revert-cases.py filelist
   added_clean
   added_deleted
-  added_removed
   added_untracked-clean
+  added_untracked-deleted
   added_untracked-wc
   added_wc
   clean_clean
   clean_deleted
-  clean_removed
   clean_untracked-clean
+  clean_untracked-deleted
   clean_untracked-wc
   clean_wc
   missing_clean
@@ -530,9 +529,9 b' check list of planned files'
   missing_wc
   modified_clean
   modified_deleted
-  modified_removed
   modified_revert
   modified_untracked-clean
+  modified_untracked-deleted
   modified_untracked-revert
   modified_untracked-wc
   modified_wc
@@ -570,15 +569,15 b' Generate base changeset'
   $ hg addremove --similarity 0
   adding clean_clean
   adding clean_deleted
-  adding clean_removed
   adding clean_untracked-clean
+  adding clean_untracked-deleted
   adding clean_untracked-wc
   adding clean_wc
   adding modified_clean
   adding modified_deleted
-  adding modified_removed
   adding modified_revert
   adding modified_untracked-clean
+  adding modified_untracked-deleted
   adding modified_untracked-revert
   adding modified_untracked-wc
   adding modified_wc
@@ -591,15 +590,15 b' Generate base changeset'
   $ hg status
   A clean_clean
   A clean_deleted
-  A clean_removed
   A clean_untracked-clean
+  A clean_untracked-deleted
   A clean_untracked-wc
   A clean_wc
   A modified_clean
   A modified_deleted
-  A modified_removed
   A modified_revert
   A modified_untracked-clean
+  A modified_untracked-deleted
   A modified_untracked-revert
   A modified_untracked-wc
   A modified_wc
@@ -617,15 +616,15 b' Generate base changeset'
   $ cat ../content-base.txt
   base   clean_clean
   base   clean_deleted
-  base   clean_removed
   base   clean_untracked-clean
+  base   clean_untracked-deleted
   base   clean_untracked-wc
   base   clean_wc
   base   modified_clean
   base   modified_deleted
-  base   modified_removed
   base   modified_revert
   base   modified_untracked-clean
+  base   modified_untracked-deleted
   base   modified_untracked-revert
   base   modified_untracked-wc
   base   modified_wc
@@ -642,8 +641,8 b' Create parent changeset'
   $ hg addremove --similarity 0
   adding added_clean
   adding added_deleted
-  adding added_removed
   adding added_untracked-clean
+  adding added_untracked-deleted
   adding added_untracked-wc
   adding added_wc
   removing removed_clean
@@ -655,16 +654,16 b' Create parent changeset'
   $ hg status
   M modified_clean
   M modified_deleted
-  M modified_removed
   M modified_revert
   M modified_untracked-clean
+  M modified_untracked-deleted
   M modified_untracked-revert
   M modified_untracked-wc
   M modified_wc
   A added_clean
   A added_deleted
-  A added_removed
   A added_untracked-clean
+  A added_untracked-deleted
   A added_untracked-wc
   A added_wc
   R removed_clean
@@ -681,21 +680,21 b' Create parent changeset'
   $ cat ../content-parent.txt
   parent added_clean
   parent added_deleted
-  parent added_removed
   parent added_untracked-clean
+  parent added_untracked-deleted
   parent added_untracked-wc
   parent added_wc
   base   clean_clean
   base   clean_deleted
-  base   clean_removed
   base   clean_untracked-clean
+  base   clean_untracked-deleted
   base   clean_untracked-wc
   base   clean_wc
   parent modified_clean
   parent modified_deleted
-  parent modified_removed
   parent modified_revert
   parent modified_untracked-clean
+  parent modified_untracked-deleted
   parent modified_untracked-revert
   parent modified_untracked-wc
   parent modified_wc
@@ -704,11 +703,8 b' Setup working directory'
 
   $ python ../gen-revert-cases.py wc
   $ hg addremove --similarity 0
-  removing added_removed
-  removing clean_removed
   adding missing_untracked-wc
   adding missing_wc
-  removing modified_removed
   adding removed_revert
   adding removed_untracked-revert
   adding removed_untracked-wc
@@ -723,14 +719,14 b' Setup working directory'
   A missing_wc
   A removed_revert
   A removed_wc
-  R added_removed
   R added_untracked-clean
+  R added_untracked-deleted
   R added_untracked-wc
-  R clean_removed
   R clean_untracked-clean
+  R clean_untracked-deleted
   R clean_untracked-wc
-  R modified_removed
   R modified_untracked-clean
+  R modified_untracked-deleted
   R modified_untracked-revert
   R modified_untracked-wc
   ! added_deleted
@@ -748,11 +744,11 b' Setup working directory'
   A added_clean
   A added_wc
   A missing_wc
-  R clean_removed
   R clean_untracked-clean
+  R clean_untracked-deleted
   R clean_untracked-wc
-  R modified_removed
   R modified_untracked-clean
+  R modified_untracked-deleted
   R modified_untracked-revert
   R modified_untracked-wc
   R removed_clean
@@ -803,20 +799,20 b' check revert output'
 
   $ hg revert --all
   reverting added_deleted
-  undeleting added_removed
   undeleting added_untracked-clean
+  undeleting added_untracked-deleted
   undeleting added_untracked-wc
   reverting added_wc
   reverting clean_deleted
-  undeleting clean_removed
   undeleting clean_untracked-clean
+  undeleting clean_untracked-deleted
   undeleting clean_untracked-wc
   reverting clean_wc
   forgetting missing_wc
   reverting modified_deleted
-  undeleting modified_removed
   reverting modified_revert
   undeleting modified_untracked-clean
+  undeleting modified_untracked-deleted
   undeleting modified_untracked-revert
   undeleting modified_untracked-wc
   reverting modified_wc
@@ -861,15 +857,15 b' check revert output'
   removing added_deleted
   removing added_wc
   reverting clean_deleted
-  undeleting clean_removed
   undeleting clean_untracked-clean
+  undeleting clean_untracked-deleted
   undeleting clean_untracked-wc
   reverting clean_wc
   forgetting missing_wc
   reverting modified_clean
   reverting modified_deleted
-  undeleting modified_removed
   undeleting modified_untracked-clean
+  undeleting modified_untracked-deleted
   undeleting modified_untracked-revert
   undeleting modified_untracked-wc
   reverting modified_wc
@@ -921,9 +917,9 b' revert all files individually and check '
   
   ### revert for: added_deleted
   
-  ### revert for: added_removed
+  ### revert for: added_untracked-clean
   
-  ### revert for: added_untracked-clean
+  ### revert for: added_untracked-deleted
   
   ### revert for: added_untracked-wc
   
@@ -934,9 +930,9 b' revert all files individually and check '
   
   ### revert for: clean_deleted
   
-  ### revert for: clean_removed
+  ### revert for: clean_untracked-clean
   
-  ### revert for: clean_untracked-clean
+  ### revert for: clean_untracked-deleted
   
   ### revert for: clean_untracked-wc
   
@@ -958,12 +954,12 b' revert all files individually and check '
   
   ### revert for: modified_deleted
   
-  ### revert for: modified_removed
-  
   ### revert for: modified_revert
   
   ### revert for: modified_untracked-clean
   
+  ### revert for: modified_untracked-deleted
+  
   ### revert for: modified_untracked-revert
   
   ### revert for: modified_untracked-wc
@@ -1015,12 +1011,12 b' revert all files individually and check '
   
   ### revert for: added_deleted
   
-  ### revert for: added_removed
-  no changes needed to added_removed
-  
   ### revert for: added_untracked-clean
   no changes needed to added_untracked-clean
   
+  ### revert for: added_untracked-deleted
+  no changes needed to added_untracked-deleted
+  
   ### revert for: added_untracked-wc
   no changes needed to added_untracked-wc
   
@@ -1031,9 +1027,9 b' revert all files individually and check '
   
   ### revert for: clean_deleted
   
-  ### revert for: clean_removed
+  ### revert for: clean_untracked-clean
   
-  ### revert for: clean_untracked-clean
+  ### revert for: clean_untracked-deleted
   
   ### revert for: clean_untracked-wc
   
@@ -1054,13 +1050,13 b' revert all files individually and check '
   
   ### revert for: modified_deleted
   
-  ### revert for: modified_removed
-  
   ### revert for: modified_revert
   no changes needed to modified_revert
   
   ### revert for: modified_untracked-clean
   
+  ### revert for: modified_untracked-deleted
+  
   ### revert for: modified_untracked-revert
   
   ### revert for: modified_untracked-wc