[java decompiler] unnecessary rethrow (IDEA-187608; EA-81800)

No need to propagate ThreadDeath here - the thread is going to finish anyway.

src/org/jetbrains/java/decompiler/main/rels/MethodProcessorRunnable.java

@@ -50,11 +50,8 @@ public class MethodProcessorRunnable implements Runnable {
       DecompilerContext.setCurrentContext(parentContext);
       root = codeToJava(method, methodDescriptor, varProc);
     }
-    catch (ThreadDeath ex) {
+    catch (Throwable t) {
-      throw ex;
+      error = t;
-    }
-    catch (Throwable ex) {
-      error = ex;
     }
     finally {
       DecompilerContext.setCurrentContext(null);