Remove MSVC6 support.

Don't support this compiler any more, this allows to get rid of tons of
MSVC6-specific workarounds, in particular we can now use Bind() and natural
template functions calls in the library code.

Also remove MSVC6 project and solution files and don't generate them when
bakefile_gen is ran any more (removing the remaining occurrences of msvc6prj
from the bakefiles results in weird bake-time errors, so it's simpler to just
leave them there).

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@76532 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

interface/wx/any.h

@@ -97,13 +97,9 @@ public:
         no type conversion is performed, so if the type is incorrect an
         assertion failure will occur.
 
-        @remarks For conveniency, conversion is done when T is wxString. This
+        @remarks For convenience, conversion is done when T is wxString. This
                  is useful when a string literal (which are treated as
                  const char* and const wchar_t*) has been assigned to wxAny.
-
-                 This template function may not work properly with Visual C++
-                 6. For full compiler compatibility, please use
-                 wxANY_AS(any, T) macro instead.
     */
     template<typename T>
     T As() const;
@@ -112,10 +108,6 @@ public:
         Use this template function for checking if this wxAny holds
         a specific C++ data type.
 
-        @remarks This template function may not work properly with Visual C++
-                6. For full compiler compatibility, please use
-                wxANY_CHECK_TYPE(any, T) macro instead.
-
         @see wxAnyValueType::CheckType()
     */
     template<typename T>
@@ -234,19 +226,6 @@ public:
     //@}
 };
 
-/**
-    This is value getter macro that is more compatible with older
-    compilers, such as Visual C++ 6.0.
-*/
-#define wxANY_AS(any, T)
-
-
-/**
-    This is type checking macro that is more compatible with older
-    compilers, such as Visual C++ 6.0.
-*/
-#define wxANY_CHECK_TYPE(any, T)
-
 
 /**
     Size of the wxAny value buffer.
@@ -398,11 +377,6 @@ public:
         Use this template function for checking if wxAnyValueType represents
         a specific C++ data type.
 
-        @remarks This template function does not work on some older compilers
-                (such as Visual C++ 6.0). For full compiler compatibility
-                please use wxANY_VALUE_TYPE_CHECK_TYPE(valueTypePtr, T) macro
-                instead.
-
         @see wxAny::CheckType()
     */
     template <typename T>
@@ -440,9 +414,3 @@ public:
     */
     virtual bool IsSameType(const wxAnyValueType* otherType) const = 0;
 };
-
-/**
-    This is type checking macro that is more compatible with older
-    compilers, such as Visual C++ 6.0.
-*/
-#define wxANY_VALUE_TYPE_CHECK_TYPE(valueTypePtr, T)

interface/wx/persist.h

@@ -332,9 +332,6 @@ wxPersistentObject *wxCreatePersistentObject(T *obj);
     wxPersistenceManager::Get() internally. As an additional convenience, this
     function can also set the window name.
 
-    For the implementation reasons, this function @em must be used instead of
-    the template method when using Microsoft Visual C++ 6 compiler.
-
     @param obj wxWindow-derived object to register with persistence manager and
         to try to restore the settings for.
     @param name If not empty, @a obj name is changed to the provided value

interface/wx/textctrl.h

@@ -1081,7 +1081,7 @@ public:
     stream.flush();
     @endcode
 
-    Note that even if your compiler doesn't support this (the symbol
+    Note that even if your build of wxWidgets doesn't support this (the symbol
     @c wxHAS_TEXT_WINDOW_STREAM has value of 0 then) you can still use
     wxTextCtrl itself in a stream-like manner: