Incremental annotation processing with KAPT

Add support for incremental annotation processors in KAPT. These
processors conform to https://docs.gradle.org/current/userguide/java_plugin.html#sec:incremental_annotation_processing
specification.

Support is provided by using javac compiler APIs and
recording the source file structure. At runtime, processors
are instrumented with custom Filer that is used to keep track of generated
files. In order to support classpath changes, stub generation task is
used to generated a list of changed FQCNs, and this is simply used by KAPT.
Both worker and non-worker mode are supported.

 #KT-23880

plugins/kapt3/kapt3-cli/src/KaptCliOption.kt

@@ -7,6 +7,7 @@ package org.jetbrains.kotlin.kapt.cli
 
 import org.jetbrains.kotlin.compiler.plugin.AbstractCliOption
 import org.jetbrains.kotlin.kapt.cli.CliToolOption.Format.*
+import java.io.File
 
 class CliToolOption(val name: String, val format: Format) {
     enum class Format {
@@ -69,6 +70,32 @@ enum class KaptCliOption(
 
     INCREMENTAL_DATA_OUTPUT_DIR_OPTION("incrementalData", "<path>", "Output path for incremental data"),
 
+    CHANGED_FILES(
+        "changedFile",
+        "<path>",
+        "Use only in apt mode. Changed java source file that should be processed when using incremental annotation processing.",
+        true
+    ),
+
+    COMPILED_SOURCES_DIR(
+        "compiledSourcesDir",
+        "<path>",
+        "Use only in apt mode. Compiled sources (.class files) from previous compilation. This is typically a kotlinc or javac output.",
+        true
+    ),
+
+    INCREMENTAL_CACHE(
+        "incrementalCache",
+        "<path>",
+        "Use only in apt mode. Output directory for cache necessary to support incremental annotation processing."
+    ),
+
+    CLASSPATH_FQ_NAMES_HISTORY(
+        "classpathFqNamesHistory",
+        "<path>",
+        "Use only in apt mode. Directory containing history of classpath fq name changes."
+    ),
+
     ANNOTATION_PROCESSOR_CLASSPATH_OPTION(
         "apclasspath",
         "<classpath>",