Kotlin: Mangle names of internal functions to match JVM symbols

java/ql/integration-tests/posix-only/kotlin/module_mangled_names/User.java

@@ -0,0 +1,9 @@
+public class User {
+
+  public static int test(Test1 test1, Test2 test2, Test3 test3) {
+
+    return test1.f$main() + test2.f$mymodule() + test3.f$reservedchars___();
+
+  }
+
+}

java/ql/integration-tests/posix-only/kotlin/module_mangled_names/test.expected

@@ -0,0 +1,4 @@
+| User.java:3:21:3:24 | test |
+| test1.kt:3:12:3:22 | f$main |
+| test2.kt:3:12:3:22 | f$mymodule |
+| test3.kt:3:12:3:22 | f$reservedchars___ |

java/ql/integration-tests/posix-only/kotlin/module_mangled_names/test.py

@@ -0,0 +1,3 @@
+from create_database_utils import *
+
+run_codeql_database_create(["kotlinc test1.kt", "kotlinc test2.kt -module-name mymodule", "kotlinc test3.kt -module-name reservedchars\\\"${}/", "javac User.java -cp ." ], lang="java")

java/ql/integration-tests/posix-only/kotlin/module_mangled_names/test.ql

@@ -0,0 +1,5 @@
+import java
+
+from Method m
+where m.fromSource()
+select m

java/ql/integration-tests/posix-only/kotlin/module_mangled_names/test1.kt

@@ -0,0 +1,5 @@
+public class Test1 {
+
+  internal fun f() = 1
+
+}

java/ql/integration-tests/posix-only/kotlin/module_mangled_names/test2.kt

@@ -0,0 +1,5 @@
+public class Test2 {
+
+  internal fun f() = 2
+
+}

java/ql/integration-tests/posix-only/kotlin/module_mangled_names/test3.kt

@@ -0,0 +1,5 @@
+public class Test3 {
+
+  internal fun f() = 3
+
+}