try to fix compile with older version of frameworks

addons/lspclient/lspclientprotocol.h

@@ -18,7 +18,6 @@
 
 #include "lspsemantichighlighting.h"
 
-#include <ktexteditor_version.h>
 #include <KTextEditor/Cursor>
 #include <KTextEditor/Range>
 

addons/lspclient/lspsemantichighlighting.cpp

@@ -14,6 +14,8 @@
 
 #include <KSyntaxHighlighting/Theme>
 
+#if KTEXTEDITOR_VERSION >= QT_VERSION_CHECK(5, 79, 0)
+
 SemanticHighlighting::SemanticHighlighting(QObject *parent) :
     QObject(parent)
 {
@@ -219,3 +221,5 @@ void SemanticHighlighting::refresh()
         }
     }
 }
+
+#endif

addons/lspclient/lspsemantichighlighting.h

@@ -7,6 +7,10 @@
 #ifndef SEMANTICTOKENMAP_H
 #define SEMANTICTOKENMAP_H
 
+#include <ktexteditor_version.h>
+
+#if KTEXTEDITOR_VERSION >= QT_VERSION_CHECK(5, 79, 0)
+
 #include <QObject>
 
 #include <vector>
@@ -73,4 +77,6 @@ private:
     KTextEditor::Attribute::Ptr fixedAttrs[6];
 };
 
+#endif
+
 #endif // SEMANTICTOKENMAP_H