QmlCompiler: Do not generate block comments into C++ code

The code we're commenting could again contain block comments. You cannot
nest them.

Fixes: QTBUG-100978
Change-Id: I78685bf29dd30f05e5a3b17abc43ba0b4cb6849e
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Reviewed-by: Jan Arve Sæther <jan-arve.saether@qt.io>
(cherry picked from commit 795d7dafe5be5cd48aa8225a1343285b3aca2be7)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

1 files changed, 2 insertions, 9 deletions

diff --git a/src/qmlcompiler/qqmljscodegenerator.cpp b/src/qmlcompiler/qqmljscodegenerator.cpp
index d87b2a38ad..c879260755 100644
--- a/src/qmlcompiler/qqmljscodegenerator.cpp
+++ b/src/qmlcompiler/qqmljscodegenerator.cpp
@@ -2268,17 +2268,10 @@ QV4::Moth::ByteCodeHandler::Verdict QQmlJSCodeGenerator::startInstruction(
     const int currentLine = currentSourceLocation().startLine;
     if (currentLine != m_lastLineNumberUsed) {
         const int nextLine = nextJSLine(currentLine);
-        if (nextLine == currentLine + 1 || nextLine < 1) {
+        for (auto line = currentLine - 1; line < nextLine - 1; ++line) {
             m_body += u"// "_qs;
-            m_body += m_sourceCodeLines.value(currentLine - 1).trimmed();
+            m_body += m_sourceCodeLines.value(line).trimmed();
             m_body += u'\n';
-        } else {
-            m_body += u"/*\n"_qs;
-            for (auto line = currentLine - 1; line < nextLine - 1; ++line) {
-                m_body += m_sourceCodeLines.at(line).trimmed();
-                m_body += u'\n';
-            }
-            m_body += u"*/\n"_qs;
         }
         m_lastLineNumberUsed = currentLine;
     }