Add --no-listeners to mix compile and mix run

Author: josevalim

lib/mix/lib/mix/tasks/compile.ex

@@ -66,6 +66,7 @@ defmodule Mix.Tasks.Compile do
     * `--no-compile` - does not actually compile, only loads code and perform checks
     * `--no-deps-check` - skips checking of dependencies
     * `--no-elixir-version-check` - does not check Elixir version
+    * `--no-listeners` - does not start Mix listeners
     * `--no-optional-deps` - does not compile or load optional deps. Useful for testing
       if a library still successfully compiles without optional dependencies (which is the
       default case with dependencies)

lib/mix/lib/mix/tasks/run.ex

@@ -57,6 +57,7 @@ defmodule Mix.Tasks.Run do
     * `--no-deps-check` - does not check dependencies
     * `--no-elixir-version-check` - does not check the Elixir version from mix.exs
     * `--no-halt` - does not halt the system after running the command
+    * `--no-listeners` - does not start Mix listeners
     * `--no-mix-exs` - allows the command to run even if there is no mix.exs
     * `--no-start` - does not start applications after compilation
 
@@ -77,6 +78,7 @@ defmodule Mix.Tasks.Run do
           halt: :boolean,
           compile: :boolean,
           deps_check: :boolean,
+          listeners: :boolean,
           start: :boolean,
           archives_check: :boolean,
           elixir_version_check: :boolean,