Introduce TestingContext to pass data between tests and KotlinBuilder; introduce BuildLogger to log build events (build finished, files marked as dirty) in KotlinBuilder

Original commit: f6e7f8c3c0

jps/jps-plugin/testData/incremental/lookupTracker/classifierMembers/init-build.log

@@ -1,9 +1,11 @@
 Compiling files:
-src/bar.kt
-src/constraints.kt
-src/foo.kt
-src/usages.kt
+  src/bar.kt
+  src/constraints.kt
+  src/foo.kt
+  src/usages.kt
 End of files
+Exit code: ABORT
+------------------------------------------
 COMPILATION FAILED
 Unresolved reference: vala
 Unresolved reference: vara

jps/jps-plugin/testData/incremental/lookupTracker/java/init-build.log

@@ -1,6 +1,8 @@
 Compiling files:
-src/usages.kt
+  src/usages.kt
 End of files
+Exit code: ABORT
+------------------------------------------
 COMPILATION FAILED
 Unresolved reference: IS
 Unresolved reference: IS

jps/jps-plugin/testData/incremental/lookupTracker/syntheticProperties/init-build.log

@@ -1,7 +1,9 @@
 Compiling files:
-src/KotlinClass.kt
-src/usages.kt
+  src/KotlinClass.kt
+  src/usages.kt
 End of files
+Exit code: ABORT
+------------------------------------------
 COMPILATION FAILED
 Unresolved reference: setFoo
 Val cannot be reassigned