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This makes it easier to use GTest in projects that build with the
-Wmissing-declarations warning. This fixes the warning in headers and
source files, though not GTest's own tests as it is rather noisy there.

instead of reading more like reversing the former "expected" and "actual"
roles of the LHS and RHS arguments.

This patch is manually applied from internal version (125109873)

As mentioned in issue #360:
"Now that all the platforms gtest supports work with value-parameterized
tests, we should remove the uses of the GTEST_HAS_PARAM_TESTS macro from
the codebase everywhere."
https://github.com/google/googletest/issues/360

The rest of the (covered) codebase is already integer overflow clean.
This is a cherry-pick of an internal change.

TESTED=gtest_shuffle_test goes from fail to pass with -fsanitize=integer

Invert the intensity bit if the background_color == foreground_color

Re-use existing background color for Widows' console window.
This fixes a problem where the background color for ColoredPrintf would be BLACK even if the user's console is using a different BG color.

This merges a Google-internal change (117235625).

Original CL description:
This CL was created manually in about an hour with sed, a Python script
to find all the places unqualified 'string' was mentioned, and some help
from Emacs to add the "std::" qualifications, plus a few manual tweaks.

Fixes #1076.

googletest doesn't currently build with clang's very aggressive
-Wformat-nonliteral warning. It requires that all non-literal format
strings come from the argument of a function annotated with a compatible
format attribute.

Fixing that reports that ColoredPrintf's callers weren't passing the
normal -Wformat warning. Some messages were passed directly into the
format string rather than via "%s".

Help says "FILE_PATH defaults to test_details.xml", but the real path is test_detail.xml.

Signed-off-by: Li Peng <lip@dtdream.com>

If $XML_OUTPUT_FILE is set, and $GTEST_OUTPUT and --gtest_output are not
specified, produce output as if GTEST_OUTPUT=xml:$XML_OUTPUT_FILE had
been set.