msvcp90: Added basic_string<char> operator[] implementation.

dlls/msvcp90/msvcp90.spec

@@ -1682,14 +1682,14 @@
 @ stub -arch=win64 ??8locale@std@@QEBA_NAEBV01@@Z
 @ stub -arch=win32 ??9locale@std@@QBE_NABV01@@Z
 @ stub -arch=win64 ??9locale@std@@QEBA_NAEBV01@@Z
-@ stub -arch=win32 ??A?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QAEAADI@Z
+@ thiscall -arch=win32 ??A?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QAEAADI@Z(ptr long) MSVCP_basic_string_char_at
 @ stub -arch=win64 ??A?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QEAAAEADU_Size_type_nosscl@01@@Z
 @ stub -arch=win32 ??A?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QAEAADU_Size_type_nosscl@01@@Z
-@ stub -arch=win64 ??A?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QEAAAEAD_K@Z
-@ stub -arch=win32 ??A?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QBEABDI@Z
+@ cdecl -arch=win64 ??A?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QEAAAEAD_K@Z(ptr long) MSVCP_basic_string_char_at
+@ thiscall -arch=win32 ??A?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QBEABDI@Z(ptr long) MSVCP_basic_string_char_const_at
 @ stub -arch=win64 ??A?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QEBAAEBDU_Size_type_nosscl@01@@Z
 @ stub -arch=win32 ??A?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QBEABDU_Size_type_nosscl@01@@Z
-@ stub -arch=win64 ??A?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QEBAAEBD_K@Z
+@ cdecl -arch=win64 ??A?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QEBAAEBD_K@Z(ptr long) MSVCP_basic_string_char_const_at
 @ stub -arch=win32 ??A?$basic_string@GU?$char_traits@G@std@@V?$allocator@G@2@@std@@QAEAAGI@Z
 @ stub -arch=win64 ??A?$basic_string@GU?$char_traits@G@std@@V?$allocator@G@2@@std@@QEAAAEAGU_Size_type_nosscl@01@@Z
 @ stub -arch=win32 ??A?$basic_string@GU?$char_traits@G@std@@V?$allocator@G@2@@std@@QAEAAGU_Size_type_nosscl@01@@Z
@@ -1698,14 +1698,14 @@
 @ stub -arch=win64 ??A?$basic_string@GU?$char_traits@G@std@@V?$allocator@G@2@@std@@QEBAAEBGU_Size_type_nosscl@01@@Z
 @ stub -arch=win32 ??A?$basic_string@GU?$char_traits@G@std@@V?$allocator@G@2@@std@@QBEABGU_Size_type_nosscl@01@@Z
 @ stub -arch=win64 ??A?$basic_string@GU?$char_traits@G@std@@V?$allocator@G@2@@std@@QEBAAEBG_K@Z
-@ stub -arch=win32 ??A?$basic_string@_WU?$char_traits@_W@std@@V?$allocator@_W@2@@std@@QAEAA_WI@Z
+@ thiscall -arch=win32 ??A?$basic_string@_WU?$char_traits@_W@std@@V?$allocator@_W@2@@std@@QAEAA_WI@Z(ptr long) MSVCP_basic_string_wchar_at
 @ stub -arch=win64 ??A?$basic_string@_WU?$char_traits@_W@std@@V?$allocator@_W@2@@std@@QEAAAEA_WU_Size_type_nosscl@01@@Z
 @ stub -arch=win32 ??A?$basic_string@_WU?$char_traits@_W@std@@V?$allocator@_W@2@@std@@QAEAA_WU_Size_type_nosscl@01@@Z
-@ stub -arch=win64 ??A?$basic_string@_WU?$char_traits@_W@std@@V?$allocator@_W@2@@std@@QEAAAEA_W_K@Z
-@ stub -arch=win32 ??A?$basic_string@_WU?$char_traits@_W@std@@V?$allocator@_W@2@@std@@QBEAB_WI@Z
+@ cdecl -arch=win64 ??A?$basic_string@_WU?$char_traits@_W@std@@V?$allocator@_W@2@@std@@QEAAAEA_W_K@Z(ptr long) MSVCP_basic_string_wchar_at
+@ thiscall -arch=win32 ??A?$basic_string@_WU?$char_traits@_W@std@@V?$allocator@_W@2@@std@@QBEAB_WI@Z(ptr long) MSVCP_basic_string_wchar_const_at
 @ stub -arch=win64 ??A?$basic_string@_WU?$char_traits@_W@std@@V?$allocator@_W@2@@std@@QEBAAEB_WU_Size_type_nosscl@01@@Z
 @ stub -arch=win32 ??A?$basic_string@_WU?$char_traits@_W@std@@V?$allocator@_W@2@@std@@QBEAB_WU_Size_type_nosscl@01@@Z
-@ stub -arch=win64 ??A?$basic_string@_WU?$char_traits@_W@std@@V?$allocator@_W@2@@std@@QEBAAEB_W_K@Z
+@ cdecl -arch=win64 ??A?$basic_string@_WU?$char_traits@_W@std@@V?$allocator@_W@2@@std@@QEBAAEB_W_K@Z(ptr long) MSVCP_basic_string_wchar_const_at
 @ stub -arch=win32 ??Bid@locale@std@@QAEIXZ
 @ stub -arch=win64 ??Bid@locale@std@@QEAA_KXZ
 @ stub -arch=win32 ??Bios_base@std@@QBEPAXXZ

dlls/msvcp90/string.c

@@ -1090,6 +1090,8 @@ size_t __thiscall MSVCP_basic_string_char_find_ch(
 
 /* ?at@?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QAEAADI@Z */
 /* ?at@?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QEAAAEAD_K@Z */
+/* ??A?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QAEAADI@Z */
+/* ??A?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QEAAAEAD_K@Z */
 DEFINE_THISCALL_WRAPPER(MSVCP_basic_string_char_at, 8)
 char* __thiscall MSVCP_basic_string_char_at(
         basic_string_char *this, size_t pos)
@@ -1104,6 +1106,8 @@ char* __thiscall MSVCP_basic_string_char_at(
 
 /* ?at@?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QBEABDI@Z */
 /* ?at@?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QEBAAEBD_K@Z */
+/* ??A?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QBEABDI@Z */
+/* ??A?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QEBAAEBD_K@Z */
 DEFINE_THISCALL_WRAPPER(MSVCP_basic_string_char_const_at, 8)
 const char* __thiscall MSVCP_basic_string_char_const_at(
         const basic_string_char *this, size_t pos)
@@ -1710,6 +1714,8 @@ size_t __thiscall MSVCP_basic_string_wchar_find_ch(
 
 /* ?at@?$basic_string@_WU?$char_traits@_W@std@@V?$allocator@_W@2@@std@@QAEAA_WI@Z */
 /* ?at@?$basic_string@_WU?$char_traits@_W@std@@V?$allocator@_W@2@@std@@QEAAAEA_W_K@Z */
+/* ??A?$basic_string@_WU?$char_traits@_W@std@@V?$allocator@_W@2@@std@@QAEAA_WI@Z */
+/* ??A?$basic_string@_WU?$char_traits@_W@std@@V?$allocator@_W@2@@std@@QEAAAEA_W_K@Z */
 DEFINE_THISCALL_WRAPPER(MSVCP_basic_string_wchar_at, 8)
 wchar_t* __thiscall MSVCP_basic_string_wchar_at(
         basic_string_wchar *this, size_t pos)
@@ -1724,6 +1730,8 @@ wchar_t* __thiscall MSVCP_basic_string_wchar_at(
 
 /* ?at@?$basic_string@_WU?$char_traits@_W@std@@V?$allocator@_W@2@@std@@QBEAB_WI@Z */
 /* ?at@?$basic_string@_WU?$char_traits@_W@std@@V?$allocator@_W@2@@std@@QEBAAEB_W_K@Z */
+/* ??A?$basic_string@_WU?$char_traits@_W@std@@V?$allocator@_W@2@@std@@QBEAB_WI@Z */
+/* ??A?$basic_string@_WU?$char_traits@_W@std@@V?$allocator@_W@2@@std@@QEBAAEB_W_K@Z */
 DEFINE_THISCALL_WRAPPER(MSVCP_basic_string_wchar_const_at, 8)
 const wchar_t* __thiscall MSVCP_basic_string_wchar_const_at(
         const basic_string_wchar *this, size_t pos)