VS: Use $(ConfigurationName) as CMAKE_CFG_INTDIR in VS 7, 8, 9

This will allow us to use a value other than just the config name
for the project OutputDirectory setting used for $(OutDir).

Also use $(ConfigurationName) instead of $(OutDir) for the link
directory configuration suffix since that is a hard-coded instance of
a use case for CMAKE_CFG_INTDIR.

Help/release/dev/vs7-OutputDirectory.rst

@@ -0,0 +1,10 @@
+vs7-OutputDirectory
+-------------------
+
+* The :variable:`CMAKE_CFG_INTDIR` variable value for Visual Studio
+  7, 8, and 9 is now ``$(ConfigurationName)`` instead of ``$(OutDir)``.
+  This should have no effect on the intended use cases of the variable.
+
+* With Visual Studio 7, 8, and 9 generators the value of the ``$(OutDir)``
+  placeholder no longer evaluates to the configuration name.  Projects
+  should use ``$(ConfigurationName)`` for that instead.

Help/variable/CMAKE_CFG_INTDIR.rst

@@ -12,11 +12,11 @@ values:
 
 ::
 
-  $(IntDir)        = Visual Studio 6
+  $(IntDir)            = Visual Studio 6
-  $(OutDir)        = Visual Studio 7, 8, 9
+  $(ConfigurationName) = Visual Studio 7, 8, 9
-  $(Configuration) = Visual Studio 10
+  $(Configuration)     = Visual Studio 10
-  $(CONFIGURATION) = Xcode
+  $(CONFIGURATION)     = Xcode
-  .                = Make-based tools
+  .                    = Make-based tools
 
 Since these values are evaluated by the native build system, this
 variable is suitable only for use in command lines that will be

Source/cmGlobalVisualStudio7Generator.h

@@ -94,7 +94,8 @@ public:
                                         std::string& dir);
 
   ///! What is the configurations directory variable called?
-  virtual const char* GetCMakeCFGIntDir() const { return "$(OutDir)"; }
+  virtual const char* GetCMakeCFGIntDir() const
+    { return "$(ConfigurationName)"; }
 
   /** Return true if the target project file should have the option
       LinkLibraryDependencies and link to .sln dependencies. */

Source/cmLocalVisualStudio7Generator.cxx

@@ -1441,7 +1441,8 @@ cmLocalVisualStudio7Generator
 
     // First search a configuration-specific subdirectory and then the
     // original directory.
-    fout << comma << this->ConvertToXMLOutputPath((dir+"/$(OutDir)").c_str())
+    fout << comma
+         << this->ConvertToXMLOutputPath((dir+"/$(ConfigurationName)").c_str())
          << "," << this->ConvertToXMLOutputPath(dir.c_str());
     comma = ",";
     }