Utils: Add more conversion operators to SmallString

An explicit operator for QLatin1StringView. That is dangerous if the
string is not ASCII and one for QUtf8StringView.

Change-Id: I2d0a0ca3854b47595563a19263aacd7f8825d026
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: Qt CI Patch Build Bot <ci_patchbuild_bot@qt.io>
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>

src/libs/utils/smallstring.h

@@ -203,6 +203,15 @@ public:
     SmallStringView toStringView() const noexcept { return SmallStringView(data(), size()); }
 
     operator SmallStringView() const noexcept { return SmallStringView(data(), size()); }
+    explicit operator QLatin1StringView() const noexcept
+    {
+        return QLatin1StringView(data(), Utils::ssize(*this));
+    }
+
+    operator QUtf8StringView() const noexcept
+    {
+        return QUtf8StringView(data(), Utils::ssize(*this));
+    }
 
     explicit operator QString() const noexcept { return toQString(); }
 

src/libs/utils/smallstringview.h

@@ -3,6 +3,7 @@
 
 #pragma once
 
+#include "algorithm.h"
 #include "smallstringfwd.h"
 #include "smallstringiterator.h"
 
@@ -76,11 +77,17 @@ public:
         return QString::fromUtf8(data(), int(size()));
     }
 
-    explicit operator QByteArray() const
+    explicit operator QByteArray() const { return QByteArray(data(), int(size())); }
+
+    explicit operator QLatin1StringView() const noexcept
     {
-        return QByteArray(data(), int(size()));
+        return QLatin1StringView(data(), Utils::ssize(*this));
     }
 
+    operator QUtf8StringView() const noexcept
+    {
+        return QUtf8StringView(data(), Utils::ssize(*this));
+    }
     constexpr bool startsWith(SmallStringView subStringToSearch) const noexcept
     {
         if (size() >= subStringToSearch.size())