remove dead code elimination option (#7669)

lib/pure/fenv.nim

@@ -10,7 +10,7 @@
 ## Floating-point environment. Handling of floating-point rounding and
 ## exceptions (overflow, division by zero, etc.).
 
-{.deadCodeElim:on.}
+{.deadCodeElim: on.}  # dce option deprecated
 
 when defined(Posix) and not defined(haiku):
   {.passl: "-lm".}

lib/pure/matchers.nim

@@ -12,7 +12,7 @@
 ## **Warning:** This module is deprecated since version 0.14.0.
 {.deprecated.}
 
-{.deadCodeElim: on.}
+{.deadCodeElim: on.}  # dce option deprecated
 
 {.push debugger:off .} # the user does not want to trace a part
                        # of the standard library!

lib/pure/net.nim

@@ -68,7 +68,7 @@
 ## ``newSocket()``. The difference is that the latter creates a new file
 ## descriptor.
 
-{.deadCodeElim: on.}
+{.deadCodeElim: on.}  # dce option deprecated
 import nativesockets, os, strutils, parseutils, times, sets, options
 export Port, `$`, `==`
 export Domain, SockType, Protocol

lib/pure/os.nim

@@ -10,7 +10,7 @@
 ## This module contains basic operating system facilities like
 ## retrieving environment variables, reading command line arguments,
 ## working with directories, running shell commands, etc.
-{.deadCodeElim: on.}
+{.deadCodeElim: on.}  # dce option deprecated
 
 {.push debugger: off.}
 

lib/pure/parseutils.nim

@@ -11,7 +11,7 @@
 ##
 ## To unpack raw bytes look at the `streams <streams.html>`_ module.
 
-{.deadCodeElim: on.}
+{.deadCodeElim: on.}  # dce option deprecated
 
 {.push debugger:off .} # the user does not want to trace a part
                        # of the standard library!

lib/pure/ropes.nim

@@ -19,7 +19,7 @@
 include "system/inclrtl"
 import streams
 
-{.deadCodeElim: on.}
+{.deadCodeElim: on.}  # dce option deprecated
 
 {.push debugger:off .} # the user does not want to trace a part
                        # of the standard library!

lib/pure/strmisc.nim

@@ -12,7 +12,7 @@
 
 import strutils
 
-{.deadCodeElim: on.}
+{.deadCodeElim: on.}  # dce option deprecated
 
 proc expandTabs*(s: string, tabSize: int = 8): string {.noSideEffect,
   procvar.} =

lib/pure/strutils.nim

@@ -17,7 +17,7 @@ import parseutils
 from math import pow, round, floor, log10
 from algorithm import reverse
 
-{.deadCodeElim: on.}
+{.deadCodeElim: on.}  # dce option deprecated
 
 {.push debugger:off .} # the user does not want to trace a part
                        # of the standard library!

lib/pure/unicode.nim

@@ -9,7 +9,7 @@
 
 ## This module provides support to handle the Unicode UTF-8 encoding.
 
-{.deadCodeElim: on.}
+{.deadCodeElim: on.}  # dce option deprecated
 
 include "system/inclrtl"