Kotlin: Tweak the build system

You can now make a versions/* directory that the build system doesn't
know about. This can be used to add support for not-yet-supported
versions.

java/kotlin-extractor/build.py

@@ -169,7 +169,7 @@ def compile(jars, java_jars, dependency_folder, transform_to_embeddable, output,
         shutil.rmtree(tmp_src_dir)
     shutil.copytree('src', tmp_src_dir)
 
-    include_version_folder = tmp_src_dir + '/main/kotlin/utils/versions/to_include'
+    include_version_folder = tmp_src_dir + '/main/kotlin/utils/this_version'
     os.makedirs(include_version_folder)
 
     resource_dir = tmp_src_dir + '/main/resources/com/github/codeql'
@@ -193,11 +193,7 @@ def compile(jars, java_jars, dependency_folder, transform_to_embeddable, output,
                 shutil.copytree(d, include_version_folder, dirs_exist_ok=True)
 
     # remove all version folders:
-    for version in kotlin_plugin_versions.many_versions:
-        d = tmp_src_dir + '/main/kotlin/utils/versions/v_' + \
-            version.replace('.', '_')
-        if os.path.exists(d):
-            shutil.rmtree(d)
+    shutil.rmtree(tmp_src_dir + '/main/kotlin/utils/versions')
 
     srcs = find_sources(tmp_src_dir)
 

java/kotlin-extractor/src/main/kotlin/comments/CommentExtractor.kt

@@ -3,8 +3,8 @@ package com.github.codeql.comments
 import com.github.codeql.*
 import com.github.codeql.utils.IrVisitorLookup
 import com.github.codeql.utils.isLocalFunction
+import com.github.codeql.utils.Psi2IrFacade
 import com.github.codeql.utils.versions.getPsi2Ir
-import com.github.codeql.utils.versions.Psi2IrFacade
 import com.intellij.psi.PsiComment
 import com.intellij.psi.PsiElement
 import org.jetbrains.kotlin.config.KotlinCompilerVersion

java/kotlin-extractor/src/main/kotlin/utils/IrVisitorLookup.kt

@@ -1,6 +1,6 @@
 package com.github.codeql.utils
 
-import com.github.codeql.utils.versions.Psi2IrFacade
+import com.github.codeql.utils.Psi2IrFacade
 import com.intellij.psi.PsiElement
 import org.jetbrains.kotlin.ir.IrElement
 import org.jetbrains.kotlin.ir.declarations.IrDeclaration

java/kotlin-extractor/src/main/kotlin/utils/Psi2IrFacade.kt

@@ -1,4 +1,4 @@
-package com.github.codeql.utils.versions
+package com.github.codeql.utils
 
 import com.intellij.psi.PsiElement
 import org.jetbrains.kotlin.ir.IrElement
@@ -8,4 +8,4 @@ import org.jetbrains.kotlin.psi.KtFile
 interface Psi2IrFacade {
     fun getKtFile(irFile: IrFile): KtFile?
     fun findPsiElement(irElement: IrElement, irFile: IrFile): PsiElement?
-}
+}

java/kotlin-extractor/src/main/kotlin/utils/versions/v_1_4_32/Psi2Ir.kt

@@ -1,3 +1,5 @@
 package com.github.codeql.utils.versions
 
+import com.github.codeql.utils.Psi2IrFacade
+
 fun getPsi2Ir(): Psi2IrFacade? = null

java/kotlin-extractor/src/main/kotlin/utils/versions/v_1_5_20/Psi2Ir.kt

@@ -6,6 +6,7 @@ import org.jetbrains.kotlin.backend.jvm.ir.getKtFile
 import org.jetbrains.kotlin.ir.IrElement
 import org.jetbrains.kotlin.ir.declarations.IrFile
 import org.jetbrains.kotlin.psi.KtFile
+import com.github.codeql.utils.Psi2IrFacade
 
 fun getPsi2Ir(): Psi2IrFacade? = Psi2Ir()