Moved current incremental compiler test data into subdirectory.

Tweaked test generator to avoid creating test methods for parent directory of tests.

jps-plugin/testData/incremental/pureKotlin/packageConstantChanged/build.log

@@ -0,0 +1,13 @@
+Cleaning output files:
+out/production/module/test/TestPackage-const-*.class
+out/production/module/test/TestPackage.class
+End of files
+Compiling files:
+src/const.kt
+End of files
+Cleaning output files:
+out/production/module/test/Usage.class
+End of files
+Compiling files:
+src/usage.kt
+End of files

jps-plugin/testData/incremental/pureKotlin/packageConstantChanged/const.kt

@@ -0,0 +1,4 @@
+package test
+
+// Old and new constant values are different, but their hashes are the same
+val CONST = "BF"

jps-plugin/testData/incremental/pureKotlin/packageConstantChanged/const.kt.new

@@ -0,0 +1,4 @@
+package test
+
+// Old and new constant values are different, but their hashes are the same
+val CONST = "Ae"

jps-plugin/testData/incremental/pureKotlin/packageConstantChanged/usage.kt

@@ -0,0 +1,4 @@
+package test
+
+deprecated(CONST + CONST)
+class Usage