Update modules documentation now that C++ support is working pretty well.

llvm-svn: 218614

clang/docs/Modules.rst

@@ -114,7 +114,7 @@ Objective-C provides syntax for importing a module via an *@import declaration*,
 
   @import std;
 
-The @import declaration above imports the entire contents of the ``std`` module (which would contain, e.g., the entire C or C++ standard library) and make its API available within the current translation unit. To import only part of a module, one may use dot syntax to specific a particular submodule, e.g.,
+The ``@import`` declaration above imports the entire contents of the ``std`` module (which would contain, e.g., the entire C or C++ standard library) and make its API available within the current translation unit. To import only part of a module, one may use dot syntax to specific a particular submodule, e.g.,
 
 .. parsed-literal::
 
@@ -166,7 +166,7 @@ Command-line parameters
   Enable the modules feature (EXPERIMENTAL).
 
 ``-fcxx-modules``
-  Enable the modules feature for C++ (EXPERIMENTAL and VERY BROKEN).
+  Enable the modules feature for C++ (EXPERIMENTAL).
 
 ``-fmodule-maps``
   Enable interpretation of module maps (EXPERIMENTAL). This option is implied by ``-fmodules``.
@@ -832,14 +832,11 @@ Modules is an experimental feature, and there is much work left to do to make it
   Unlike with ``#include`` directives, it should be fairly simple to track whether a directly-imported module has ever been used. By doing so, Clang can emit ``unused import`` or ``unused #include`` diagnostics, including Fix-Its to remove the useless imports/includes.
 
 **Fix-Its for missing imports**
-  It's fairly common for one to make use of some API while writing code, only to get a compiler error about "unknown type" or "no function named" because the corresponding header has not been included. Clang should detect such cases and auto-import the required module (with a Fix-It!).
+  It's fairly common for one to make use of some API while writing code, only to get a compiler error about "unknown type" or "no function named" because the corresponding header has not been included. Clang can detect such cases and auto-import the required module, but should provide a Fix-It to add the import.
 
 **Improve modularize**
   The modularize tool is both extremely important (for deployment) and extremely crude. It needs better UI, better detection of problems (especially for C++), and perhaps an assistant mode to help write module maps for you.
 
-**C++ Support**
-  Modules clearly has to work for C++, or we'll never get to use it for the Clang code base.
-
 Where To Learn More About Modules
 =================================
 The Clang source code provides additional information about modules: