Fix linter issues.

Author: aardvark179

src/main/java/org/truffleruby/cext/CExtNodes.java

@@ -124,7 +124,8 @@ public abstract static class CallWithCExtLockAndFrameNode extends PrimitiveArray
         @Child protected CallWithCExtLockNode callCextNode = CallWithCExtLockNodeFactory.create(RubyNode.EMPTY_ARRAY);
 
         @Specialization
-        protected Object callWithCExtLockAndFrame(Object receiver, RubyArray argsArray, Object specialVariables, Object block,
+        protected Object callWithCExtLockAndFrame(
+                Object receiver, RubyArray argsArray, Object specialVariables, Object block,
                 @Cached MarkingServiceNodes.GetMarkerThreadLocalDataNode getDataNode) {
             final ExtensionCallStack extensionStack = getDataNode.execute().getExtensionCallStack();
             extensionStack.push(variables, block);

src/main/java/org/truffleruby/core/thread/TruffleThreadNodes.java

@@ -18,9 +18,7 @@
 import org.truffleruby.core.kernel.TruffleKernelNodes.GetSpecialVariableStorage;
 import org.truffleruby.core.MarkingServiceNodes;
 import org.truffleruby.language.arguments.CallerDataReadingNode;
-import org.truffleruby.language.arguments.ReadCallerDataNode;
 import org.truffleruby.language.FrameAndVariablesSendingNode;
-import org.truffleruby.language.RubyNode;
 
 import com.oracle.truffle.api.CompilerDirectives.TruffleBoundary;
 import com.oracle.truffle.api.dsl.Cached;
@@ -29,8 +27,6 @@
 import com.oracle.truffle.api.frame.Frame;
 import com.oracle.truffle.api.frame.FrameInstance.FrameAccess;
 import com.oracle.truffle.api.library.CachedLibrary;
-import com.oracle.truffle.api.nodes.DirectCallNode;
-import com.oracle.truffle.api.nodes.IndirectCallNode;
 import com.oracle.truffle.api.nodes.Node;
 
 @CoreModule("Truffle::ThreadOperations")
@@ -49,7 +45,8 @@ public FrameAndCallNode(Frame frame, Node callNode) {
 
     @CoreMethod(names = "ruby_caller_special_variables", onSingleton = true, required = 1)
     @ImportStatic(ArrayGuards.class)
-    public abstract static class FindRubyCallerSpecialStorage extends CoreMethodArrayArgumentsNode implements CallerDataReadingNode {
+    public abstract static class FindRubyCallerSpecialStorage extends CoreMethodArrayArgumentsNode
+            implements CallerDataReadingNode {
 
         @TruffleBoundary
         @Specialization(limit = "storageStrategyLimit()")

src/main/java/org/truffleruby/language/arguments/ReadCallerDataNode.java

@@ -15,17 +15,13 @@
 import com.oracle.truffle.api.frame.Frame;
 import com.oracle.truffle.api.frame.MaterializedFrame;
 import com.oracle.truffle.api.frame.FrameInstance.FrameAccess;
-import com.oracle.truffle.api.nodes.DirectCallNode;
-import com.oracle.truffle.api.nodes.IndirectCallNode;
 import com.oracle.truffle.api.nodes.Node;
 import com.oracle.truffle.api.profiles.ConditionProfile;
 
-import org.truffleruby.RubyContext;
 import org.truffleruby.language.CallStackManager;
 import org.truffleruby.language.FrameAndVariablesSendingNode;
 import org.truffleruby.language.NotOptimizedWarningNode;
 import org.truffleruby.language.RubyBaseNode;
-import org.truffleruby.language.RubyNode;
 import org.truffleruby.language.control.RaiseException;
 
 public abstract class ReadCallerDataNode extends RubyBaseNode implements CallerDataReadingNode {