Issue1634224

Module defines a call_function by outputing byte code for each method in the module like so:
aload(0)
aload(2)
invokevirtual
areturn

with many functions/methods the aloads can add an excessibe amount of bytes to the generated class file.  By moving the aloads out of the loop the amount of bytes is reduced by 2 instructions per function.  Use the attached patch and run javap on the output class file to see the difference on this simple file:
def one():
    print "one"

def two():
    print "two"


one()
two()
OLD GENERATES:
public org.python.core.PyObject call_function(int, org.python.core.PyFrame);
  Code:
   0:   iload_1
   1:   tableswitch{ //0 to 2
                0: 28;
                1: 34;
                2: 40;
                default: 46 }
   28:  aload_0
   29:  aload_2
   30:  invokevirtual   #117; //Method f$0:(Lorg/python/core/PyFrame;)Lorg/python/core/PyObject;
   33:  areturn
   34:  aload_0
   35:  aload_2
   36:  invokevirtual   #119; //Method one$1:(Lorg/python/core/PyFrame;)Lorg/python/core/PyObject;
   39:  areturn
   40:  aload_0
   41:  aload_2
   42:  invokevirtual   #121; //Method two$2:(Lorg/python/core/PyFrame;)Lorg/python/core/PyObject;
   45:  areturn
   46:  aconst_null
   47:  areturn


PATCHED GENERATES:
public org.python.core.PyObject call_function(int, org.python.core.PyFrame);
  Code:
   0:   aload_0
   1:   aload_2
   2:   iload_1
   3:   tableswitch{ //0 to 2
                0: 28;
                1: 32;
                2: 36;
                default: 40 }
   28:  invokevirtual   #117; //Method f$0:(Lorg/python/core/PyFrame;)Lorg/python/core/PyObject;
   31:  areturn
   32:  invokevirtual   #119; //Method one$1:(Lorg/python/core/PyFrame;)Lorg/python/core/PyObject;
   35:  areturn
   36:  invokevirtual   #121; //Method two$2:(Lorg/python/core/PyFrame;)Lorg/python/core/PyObject;
   39:  areturn
   40:  aconst_null
   41:  areturn

}


So in this case we are saving 6 instructions in one simple module.  In larger modules the savings are more significant.

applied in r3133