CPlusPlus: Fix compile before Qt6.5v12.0.0

Amends 7475b073fb8084cf1304cea8a1781e74204a0a11.

Change-Id: I59494fe485cdb40b3af089698edc895dc2dd4519
Reviewed-by: David Schulz <[email protected]>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/libs/3rdparty/cplusplus/Lexer.cpp b/src/libs/3rdparty/cplusplus/Lexer.cpp
index 62a95f455a7..92cfc5d6ecf 100644
--- a/src/libs/3rdparty/cplusplus/Lexer.cpp
+++ b/src/libs/3rdparty/cplusplus/Lexer.cpp
@@ -843,7 +843,7 @@ bool Lexer::scanUntilRawStringLiteralEndPrecise()
     while (_yychar) {
         slidingWindow.append(_yychar);
         if (slidingWindow.size() > _expectedRawStringSuffix.size())
-            slidingWindow.removeFirst();
+            slidingWindow.remove(0, 1);
         if (slidingWindow == _expectedRawStringSuffix) {
             _expectedRawStringSuffix.clear();
             yyinp();