In cases when the test has the JVM_TARGET directive, use that one for
Java compilation as well.
Otherwise, for box tests, the corresponding test in `JvmTarget6OnJvm6`
(module `:compiler:tests-different-jdk`) will fail. However, it affects
all codegen tests, so fix a bunch of them which use Java 8+ features to
explicitly compile with JVM target 1.8. In particular, this obsoletes
the SKIP_JDK6 directive in those tests because "JVM_TARGET: 1.8" also
skips it for JDK 6.
The check for IS_SOURCE_6_STILL_SUPPORTED is needed in order to still be
able to run tests in the project while only having a single JDK > 11
installed, and having all of the env vars JDK_16, JDK_17, JDK_18
pointing to that JDK.
If it isn't ANNOTATION_CLASS, the newly added code in
`FunctionCodegen.isDeprecatedHidden` (0e91d3fcb0) ends up transforming
IR annotation constructor calls to annotation descriptors, and an
assertion fails in `IrBasedDeclarationDescriptor.toAnnotationDescriptor`
which checks that the class has kind ANNOTATION_CLASS.
Specifically, this failed in the JVM IR bootstrap on
`CallResolutionInterceptorExtension.interceptCandidates` from module
'frontend'.
Before this commit, we generated fake overrides at last FIR2IR stage,
after having all functions and classes built. This could lead to a
situation when fake override was called before it was generated.
This commit fixes this situation.
We generate @java.lang.Deprecated annotation on methods of $DefaultImpls
classes in compatibility mode. This annotation has RUNTIME retention and
should be visible.
Also, get rid of representing annotations as Class'es (yes we know that
these annotations are in compiler CLASSPATH, but we should not rely on
such classes and associated information).
Before this commit we considered !isOverride as a sign that
function / field / accessor has no overridden symbols.
However, it's false for deserialized, because isOverride
is always false there.
This commit fixes 68 BB tests but breaks 25 BB tests (not yet muted)
Mikhael Bogdanov