Kotlin: Add packageFqName and IrSymbolInternals compatibility

In master, we need to switch to these, but for building for older
versions we need to add our own support.

Currently the v_1_9_255 files are nto used, but we will need them (in a
differently-named directory) for a future release.

java/kotlin-extractor/src/main/kotlin/utils/versions/v_1_4_32/IrSymbolInternals.kt

@@ -0,0 +1,4 @@
+package org.jetbrains.kotlin.ir.symbols
+
+@RequiresOptIn(level = RequiresOptIn.Level.WARNING)
+annotation class IrSymbolInternals

java/kotlin-extractor/src/main/kotlin/utils/versions/v_1_4_32/packageFqName.kt

@@ -0,0 +1,10 @@
+package com.github.codeql.utils.versions
+
+import org.jetbrains.kotlin.ir.declarations.*
+import org.jetbrains.kotlin.name.FqName
+
+val IrFile.packageFqName: FqName
+    get() = this.fqName
+
+val IrPackageFragment.packageFqName: FqName
+    get() = this.fqName

java/kotlin-extractor/src/main/kotlin/utils/versions/v_1_9_255/IrSymbolInternals.kt

@@ -0,0 +1,4 @@
+package com.github.codeql
+
+// The compiler provides the annotation class, so we don't need to do
+// anything

java/kotlin-extractor/src/main/kotlin/utils/versions/v_1_9_255/packageFqName.kt

@@ -0,0 +1,3 @@
+package com.github.codeql
+
+// The compiler provides packageFqName, so we don't need to do anything