AI 145059: (Almost) final set of wrapper around the C headers for stdc++ and their tests.

The only one left is cstring.
  * bionic/libstdc++/include/cstdlib:
  * bionic/libstdc++/include/cstdio:
  * bionic/libstdc++/include/cstdint:
  * bionic/libstdc++/include/csignal:
  * bionic/libstdc++/include/csetjmp:
  Added header file.
  Checks the bionic headers file were picked up instead of the host ones.
  Added test for new header files
  * system/extras/tests/bionic/libstdc++/Android.mk:
  Added tests for the new header files.
  EXTRA_CFLAGS: include the bionic header files.
  BUG=1601432

Automated import of CL 145059

libstdc++/include/cstdio

@@ -0,0 +1,92 @@
+/* -*- c++ -*- */
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef BIONIC_LIBSTDCPP_INCLUDE_CSTDIO__
+#define BIONIC_LIBSTDCPP_INCLUDE_CSTDIO__
+
+/*
+ * Standard C++ Library wrapper around the C stdio.h header file.
+ */
+#include <cstddef>
+#include <stdio.h>
+
+namespace std {
+using ::FILE;
+using ::fpos_t;
+
+using ::clearerr;
+using ::fclose;
+using ::feof;
+using ::ferror;
+using ::fflush;
+using ::fgetc;
+using ::fgetpos;
+using ::fgets;
+using ::fopen;
+using ::fprintf;
+using ::fputc;
+using ::fputs;
+using ::fread;
+using ::freopen;
+using ::fscanf;
+using ::fseek;
+using ::fsetpos;
+using ::ftell;
+using ::fwrite;
+using ::getc;
+using ::getchar;
+using ::gets;
+using ::perror;
+using ::printf;
+using ::putc;
+using ::putchar;
+using ::puts;
+using ::remove;
+using ::rename;
+using ::rewind;
+using ::scanf;
+using ::setbuf;
+using ::setvbuf;
+using ::sprintf;
+using ::sscanf;
+using ::tmpfile;
+using ::tmpnam;
+using ::ungetc;
+using ::vfprintf;
+using ::vprintf;
+using ::vsprintf;
+
+using ::snprintf;
+using ::vfscanf;
+using ::vscanf;
+using ::vsnprintf;
+using ::vsscanf;
+}  // namespace std
+
+#endif  // BIONIC_LIBSTDCPP_INCLUDE_CSTDIO__