Exclude .kt files from one stmt in line query

Author: tamasvajk

java/ql/src/Advisory/Statements/OneStatementPerLine.ql

@@ -37,6 +37,7 @@ predicate oneLineStatement(Stmt s, File f, int line, int col) {
 from Stmt s, Stmt s2
 where
   exists(File f, int line, int col, int col2 |
+    f.isJavaSourceFile() and
     oneLineStatement(s, f, line, col) and
     oneLineStatement(s2, f, line, col2) and
     col < col2 and

java/ql/test/kotlin/query-tests/OneStatementPerLine/OneStatementPerLine.expected

@@ -1 +0,0 @@
-| Test.kt:5:9:5:23 | return ... | This statement is followed by another on the same line. |