cmake_language: Rename command from cmake_command

Also rename the `INVOKE` signature to `CALL`.

Fixes: #20732

Help/command/cmake_language.rst

@@ -1,5 +1,5 @@
-cmake_command
--------------
+cmake_language
+--------------
 
 Call meta-operations on CMake commands.
 
@@ -8,8 +8,8 @@ Synopsis
 
 .. parsed-literal::
 
-  cmake_command(`INVOKE`_ <command> [<args>...])
-  cmake_command(`EVAL`_ CODE <code>...)
+  cmake_language(`CALL`_ <command> [<args>...])
+  cmake_language(`EVAL`_ CODE <code>...)
 
 Introduction
 ^^^^^^^^^^^^
@@ -17,24 +17,24 @@ Introduction
 This command will call meta-operations on built-in CMake commands or
 those created via the :command:`macro` or :command:`function` commands.
 
-``cmake_command`` does not introduce a new variable or policy scope.
+``cmake_language`` does not introduce a new variable or policy scope.
 
-Invoking Commands
-^^^^^^^^^^^^^^^^^
+Calling Commands
+^^^^^^^^^^^^^^^^
 
-.. _INVOKE:
+.. _CALL:
 
 .. code-block:: cmake
 
-  cmake_command(INVOKE <command> [<args>...])
+  cmake_language(CALL <command> [<args>...])
 
-Invokes the named ``<command>`` with the given arguments (if any).
+Calls the named ``<command>`` with the given arguments (if any).
 For example, the code:
 
 .. code-block:: cmake
 
   set(message_command "message")
-  cmake_command(INVOKE ${message_command} STATUS "Hello World!")
+  cmake_language(CALL ${message_command} STATUS "Hello World!")
 
 is equivalent to
 
@@ -49,7 +49,7 @@ Evaluating Code
 
 .. code-block:: cmake
 
-  cmake_command(EVAL CODE <code>...)
+  cmake_language(EVAL CODE <code>...)
 
 Evaluates the ``<code>...`` as CMake code.
 
@@ -62,7 +62,7 @@ For example, the code:
   set(C TRUE)
   set(condition "(A AND B) OR C")
 
-  cmake_command(EVAL CODE "
+  cmake_language(EVAL CODE "
     if (${condition})
       message(STATUS TRUE)
     else()

Help/command/function.rst

@@ -44,14 +44,14 @@ can be invoked through any of
   foo()
   Foo()
   FOO()
-  cmake_command(INVOKE foo)
+  cmake_language(CALL foo)
 
 and so on. However, it is strongly recommended to stay with the
 case chosen in the function definition. Typically functions use
 all-lowercase names.
 
-The :command:`cmake_command(INVOKE ...)` command can also be used to invoke the
-function.
+The :command:`cmake_language(CALL ...)` command can also be used to
+invoke the function.
 
 Arguments
 ^^^^^^^^^

Help/command/macro.rst

@@ -42,14 +42,14 @@ can be invoked through any of
   foo()
   Foo()
   FOO()
-  cmake_command(INVOKE foo)
+  cmake_language(CALL foo)
 
 and so on. However, it is strongly recommended to stay with the
 case chosen in the macro definition.  Typically macros use
 all-lowercase names.
 
-The :command:`cmake_command(INVOKE ...)` command can also be used to invoke the
-macro.
+The :command:`cmake_language(CALL ...)` command can also be used to
+invoke the macro.
 
 Arguments
 ^^^^^^^^^