IC: Compute symbols impacted by classpath changes (#5111)

IC: Compute symbols impacted by classpath changes

Incremental compilation has 4 key steps:
  1. Compile changed/impacted files
  2. Detect symbols that have changed after compiling
  3. Detect symbols that are impacted by the changed symbols
  4. Based on the changed-or-impacted symbols, identify files that need
     to be recompiled. Go back to step 1.

Normally, step 2 and 3 are done together when the changed symbols
and impacted symbols are in the same module.

However, if the changed symbols and impacted symbols are in different
modules (e.g., a `Subclass` in lib1 extends a `Superclass` in lib2),
we currently do not compute symbols in the current module that are
impacted by changes in another module (step 3 above).

This is the case for both the new IC and the old IC.

In this commit, we will compute impacted symbols for the new IC. We can
fix the old IC later if necessary (they can't be fixed together easily).

Test: Added BaseIncrementalCompilationMultiProjectIT.testChangeInterfaceInLib
^KT-56197 Fixed

jps/jps-plugin/src/org/jetbrains/kotlin/jps/build/KotlinBuilder.kt

@@ -52,9 +52,6 @@ import org.jetbrains.kotlin.utils.KotlinPaths
 import org.jetbrains.kotlin.utils.KotlinPathsFromHomeDir
 import org.jetbrains.kotlin.utils.PathUtil
 import java.io.File
-import java.util.*
-import kotlin.collections.ArrayList
-import kotlin.collections.HashSet
 import kotlin.system.measureTimeMillis
 
 class KotlinBuilder : ModuleLevelBuilder(BuilderCategory.SOURCE_PROCESSOR) {
@@ -776,7 +773,7 @@ private fun ChangesCollector.getDirtyFiles(
     lookupStorageManager: JpsLookupStorageManager
 ): FilesToRecompile {
     val reporter = JpsICReporter()
-    val (dirtyLookupSymbols, dirtyClassFqNames, forceRecompile) = getDirtyData(caches, reporter)
+    val (dirtyLookupSymbols, dirtyClassFqNames, forceRecompile) = getChangedAndImpactedSymbols(caches, reporter)
     val dirtyFilesFromLookups = lookupStorageManager.withLookupStorage {
         mapLookupSymbolsToFiles(it, dirtyLookupSymbols, reporter)
     }