Kapt: Add runtime library, move all modules inside the 'kapt3' directory

plugins/kapt3/kapt3-compiler/testData/converter/invalidFieldName.kt

@@ -0,0 +1,10 @@
+// EXPECTED_ERROR 'WHI-TE' is an invalid Java enum value name
+// EXPECTED_ERROR an enum annotation value must be an enum constant
+// EXPECTED_ERROR cannot find symbol
+
+enum class Color {
+    BLACK, `WHI-TE`
+}
+
+@Anno(Color.`WHI-TE`)
+annotation class Anno(val color: Color)