Clean up examples

Clean up examples

Simplify hello world examples.  
  Remove DEBUG/RELEASE builds from make.
  Remove 'helper_functions' from simple hello_world.
  Move C++ hello_world -> hello_world_interactive.
  Move Hello_world_c -> hello_world_newlib
  Copy Hello_world_c -> hello_world_glibc (with glibc TC)

This change grately simplifies the hello world cases making it easier
to point out exactly what is different between the various builds.
It also allows us to stage simple make file changes instead of starting
with a more complex one.

This change only affect the NaCl SDK builders.

BUG=109207
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=121374

[noelallen1, 2012-02-10 00:27:06]

FYI, the change isn't as bad as it looks.  It's really a move of hello_world_c
to hello_world_newlib & hello_world_glibc.

glibc is built from hello_world_newlib with only the following changes:
  TC points to glibc
  Adds use of create_nmf.py
  hello_world.c prints 'Hello World (GLIBC)' instead.

hello_world_interactive is hello_world renamed.

[bradn, 2012-02-10 00:56:16]

lgtm

https://chromiumcodereview.appspot.com/9370041/diff/1/native_client_sdk/src/e...
File native_client_sdk/src/examples/hello_world_glibc/Makefile (right):

https://chromiumcodereview.appspot.com/9370041/diff/1/native_client_sdk/src/e...
native_client_sdk/src/examples/hello_world_glibc/Makefile:1: # Copyright (c)
2011 The Native Client Authors. All rights reserved.
2012

https://chromiumcodereview.appspot.com/9370041/diff/1/native_client_sdk/src/e...
File native_client_sdk/src/examples/hello_world_newlib/Makefile (right):

https://chromiumcodereview.appspot.com/9370041/diff/1/native_client_sdk/src/e...
native_client_sdk/src/examples/hello_world_newlib/Makefile:1: # Copyright (c)
2011 The Native Client Authors. All rights reserved.
2012

[noelallen1, 2012-02-10 22:31:45]

https://chromiumcodereview.appspot.com/9370041/diff/1/native_client_sdk/src/e...
File native_client_sdk/src/examples/hello_world_glibc/Makefile (right):

https://chromiumcodereview.appspot.com/9370041/diff/1/native_client_sdk/src/e...
native_client_sdk/src/examples/hello_world_glibc/Makefile:1: # Copyright (c)
2011 The Native Client Authors. All rights reserved.
On 2012/02/10 00:56:16, bradn wrote:
> 2012

Done.

https://chromiumcodereview.appspot.com/9370041/diff/1/native_client_sdk/src/e...
File native_client_sdk/src/examples/hello_world_newlib/Makefile (right):

https://chromiumcodereview.appspot.com/9370041/diff/1/native_client_sdk/src/e...
native_client_sdk/src/examples/hello_world_newlib/Makefile:1: # Copyright (c)
2011 The Native Client Authors. All rights reserved.
On 2012/02/10 00:56:16, bradn wrote:
> 2012

Done.