no longer copy the frame descriptor

Author: timfel

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/nodes/function/FunctionRootNode.java

@@ -119,7 +119,7 @@ public FrameSlot[] getCellVarSlots() {
 
     @Override
     public FunctionRootNode copy() {
-        return new FunctionRootNode(getLanguage(PythonLanguage.class), getSourceSection(), functionName, isGenerator, getFrameDescriptor().shallowCopy(), uninitializedBody, executionCellSlots);
+        return new FunctionRootNode(getLanguage(PythonLanguage.class), getSourceSection(), functionName, isGenerator, getFrameDescriptor(), uninitializedBody, executionCellSlots);
     }
 
     @ExplodeLoop

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/nodes/generator/FrameTransferNode.java

@@ -61,47 +61,41 @@ public Object doWrite(VirtualFrame frame, Object value) {
     @Specialization(guards = "isBooleanKind(frame)")
     public boolean write(VirtualFrame frame, boolean right) {
         Frame cargoFrame = PArguments.getGeneratorFrame(frame);
-        assert frameSlot.getFrameDescriptor() == cargoFrame.getFrameDescriptor();
         cargoFrame.setBoolean(frameSlot, right);
         return right;
     }
 
     @Specialization(guards = "isIntegerKind(frame)")
     public int doInteger(VirtualFrame frame, int value) {
         Frame cargoFrame = PArguments.getGeneratorFrame(frame);
-        assert frameSlot.getFrameDescriptor() == cargoFrame.getFrameDescriptor();
         cargoFrame.setInt(frameSlot, value);
         return value;
     }
 
     @Specialization(guards = "isIntOrObjectKind(frame)")
     public PInt write(VirtualFrame frame, PInt value) {
         Frame cargoFrame = PArguments.getGeneratorFrame(frame);
-        assert frameSlot.getFrameDescriptor() == cargoFrame.getFrameDescriptor();
         setObject(cargoFrame, value);
         return value;
     }
 
     @Specialization(guards = "isLongKind(frame)")
     public long doLong(VirtualFrame frame, long value) {
         Frame cargoFrame = PArguments.getGeneratorFrame(frame);
-        assert frameSlot.getFrameDescriptor() == cargoFrame.getFrameDescriptor();
         cargoFrame.setLong(frameSlot, value);
         return value;
     }
 
     @Specialization(guards = "isDoubleKind(frame)")
     public double doDouble(VirtualFrame frame, double right) {
         Frame cargoFrame = PArguments.getGeneratorFrame(frame);
-        assert frameSlot.getFrameDescriptor() == cargoFrame.getFrameDescriptor();
         cargoFrame.setDouble(frameSlot, right);
         return right;
     }
 
     @Specialization(guards = "isObjectKind(frame)")
     public Object write(VirtualFrame frame, Object right) {
         Frame cargoFrame = PArguments.getGeneratorFrame(frame);
-        assert frameSlot.getFrameDescriptor() == cargoFrame.getFrameDescriptor();
         assert !(right instanceof PInt);
         setObject(cargoFrame, right);
         return right;