Removing unused imports.

Author: ppisl

graalpython/com.oracle.graal.python.test/src/com/oracle/graal/python/test/interop/ArgsKwArgsTest.java

@@ -44,19 +44,13 @@
 import org.graalvm.polyglot.Context;
 import org.graalvm.polyglot.PolyglotException;
 import org.graalvm.polyglot.Value;
-import org.graalvm.polyglot.proxy.ProxyArray;
-import org.graalvm.polyglot.proxy.ProxyHashMap;
-import org.graalvm.polyglot.proxy.ProxyIterator;
-import org.graalvm.polyglot.proxy.ProxyObject;
 import org.graalvm.python.embedding.KeywordArguments;
 import org.graalvm.python.embedding.PositionalArguments;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 
-import java.util.Iterator;
 import java.util.Map;
-import java.util.NoSuchElementException;
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertThrows;

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/PythonAbstractObject.java

@@ -1372,7 +1372,7 @@ static Object doExecute(Object receiver, Object[] arguments,
                         }
                     }
                 } catch (UnknownIdentifierException | SameDictKeyException | NonMappingException | StopIterationException e) {
-                    throw CompilerDirectives.shouldNotReachHere();
+                    throw CompilerDirectives.shouldNotReachHere(e);
                 }
             }
             Object[] convertedArgs = convertArgsNode.execute(inliningTarget, newArgs);