dbghelp: Remove superfluous casts to self.

dlls/dbghelp/dwarf.c

@@ -3167,7 +3167,7 @@ static ULONG_PTR eval_expression(const struct module* module, struct cpu_stack_w
             case 1: stack[sp] = *(unsigned char*)&tmp; break;
             case 2: stack[sp] = *(unsigned short*)&tmp; break;
             case 4: stack[sp] = *(unsigned int*)&tmp; break;
-            case 8: stack[sp] = *(ULONG_PTR*)&tmp; break; /* FIXME: won't work on 32bit platform */
+            case 8: stack[sp] = tmp; break; /* FIXME: won't work on 32bit platform */
             default: FIXME("Unknown size for deref 0x%lx\n", sz);
             }
             break;

dlls/dbghelp/module.c

@@ -677,7 +677,7 @@ BOOL image_check_alternate(struct image_file_map* fmap, const struct module* mod
         const char* dbg_link;
 
         found = TRUE;
-        dbg_link = (const char*)image_map_section(&debuglink_sect);
+        dbg_link = image_map_section(&debuglink_sect);
         if (dbg_link != IMAGE_NO_MAP)
         {
             /* The content of a debug link section is:

dlls/dbghelp/pe_module.c

@@ -428,7 +428,7 @@ static BOOL pe_load_coff_symbol_table(struct module* module)
     if (!fmap->u.pe.ntheader.FileHeader.PointerToSymbolTable || !numsym)
         return TRUE;
     if (!(mapping = pe_map_full(fmap, NULL))) return FALSE;
-    isym = (const IMAGE_SYMBOL*)((const char*)mapping + fmap->u.pe.ntheader.FileHeader.PointerToSymbolTable);
+    isym = (const IMAGE_SYMBOL*)(mapping + fmap->u.pe.ntheader.FileHeader.PointerToSymbolTable);
     /* FIXME: no way to get strtable size */
     strtable = (const char*)&isym[numsym];
     sect = IMAGE_FIRST_SECTION(RtlImageNtHeader((HMODULE)mapping));