Correct tag names for RECTL and SCROLLINFO structs.

include/windef.h

@@ -327,7 +327,7 @@ typedef struct tagRECT
 } RECT, *PRECT, *LPRECT;
 typedef const RECT *LPCRECT;
 
-typedef struct tagRECTL
+typedef struct _RECTL
 {
     LONG left;
     LONG top;

include/winuser.h

@@ -2109,7 +2109,7 @@ typedef PVOID *LPMENUTEMPLATE;
 #define SBM_GETSCROLLINFO      0x00ea
 
 /* Scrollbar info */
-typedef struct
+typedef struct tagSCROLLINFO
 {
     UINT    cbSize;
     UINT    fMask;