shell32: Constify some variables

[Andrew Talbot]

Changelog:
    shell32: Constify some variables.

diff -urN a/dlls/shell32/brsfolder.c b/dlls/shell32/brsfolder.c
--- a/dlls/shell32/brsfolder.c	2007-09-10 22:28:04.000000000 +0100
+++ b/dlls/shell32/brsfolder.c	2007-09-10 22:25:44.000000000 +0100
@@ -179,7 +179,7 @@
     IShellFolder_Release(lpsfParent);
 }
 
-static int GetIcon(LPITEMIDLIST lpi, UINT uFlags)
+static int GetIcon(LPCITEMIDLIST lpi, UINT uFlags)
 {
     SHFILEINFOW sfi;
     SHGetFileInfoW((LPCWSTR)lpi, 0 ,&sfi, sizeof(SHFILEINFOW), uFlags);
diff -urN a/dlls/shell32/changenotify.c b/dlls/shell32/changenotify.c
--- a/dlls/shell32/changenotify.c	2007-09-10 22:28:04.000000000 +0100
+++ b/dlls/shell32/changenotify.c	2007-09-10 22:25:59.000000000 +0100
@@ -105,7 +105,7 @@
 #undef DUMPEV
 }
 
-static const char * NodeName(LPNOTIFICATIONLIST item)
+static const char * NodeName(const NOTIFICATIONLIST *item)
 {
     const char *str;
     WCHAR path[MAX_PATH];
diff -urN a/dlls/shell32/cpanelfolder.c b/dlls/shell32/cpanelfolder.c
--- a/dlls/shell32/cpanelfolder.c	2007-09-10 22:28:04.000000000 +0100
+++ b/dlls/shell32/cpanelfolder.c	2007-09-10 22:26:10.000000000 +0100
@@ -917,7 +917,7 @@
     ICPanel_PersistFolder2_GetCurFolder
 };
 
-HRESULT CPanel_GetIconLocationW(LPITEMIDLIST pidl,
+HRESULT CPanel_GetIconLocationW(LPCITEMIDLIST pidl,
                LPWSTR szIconFile, UINT cchMax, int* piIndex)
 {
     PIDLCPanelStruct* pcpanel = _ILGetCPanelPointer(pidl);
diff -urN a/dlls/shell32/shell32_main.h b/dlls/shell32/shell32_main.h
--- a/dlls/shell32/shell32_main.h	2007-03-23 13:37:35.000000000 +0000
+++ b/dlls/shell32/shell32_main.h	2007-09-10 23:06:50.000000000 +0100
@@ -99,7 +99,7 @@
 HRESULT WINAPI MyDocuments_Constructor(IUnknown * pUnkOuter, REFIID riid, LPVOID *ppv);
 HRESULT WINAPI RecycleBin_Constructor(IUnknown * pUnkOuter, REFIID riif, LPVOID *ppv);
 HRESULT WINAPI ShellFSFolder_Constructor(IUnknown * pUnkOuter, REFIID riid, LPVOID *ppv);
-extern HRESULT CPanel_GetIconLocationW(LPITEMIDLIST, LPWSTR, UINT, int*);
+extern HRESULT CPanel_GetIconLocationW(LPCITEMIDLIST, LPWSTR, UINT, int*);
 HRESULT WINAPI CPanel_ExtractIconA(LPITEMIDLIST pidl, LPCSTR pszFile, UINT nIconIndex, HICON *phiconLarge, HICON *phiconSmall, UINT nIconSize);
 HRESULT WINAPI CPanel_ExtractIconW(LPITEMIDLIST pidl, LPCWSTR pszFile, UINT nIconIndex, HICON *phiconLarge, HICON *phiconSmall, UINT nIconSize);