Inspired by r231891, use gender neutral pronouns in the places I've

found in LLVM.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231893 91177308-0d34-0410-b5e6-96231b3b80d8

docs/MergeFunctions.rst

@@ -58,8 +58,8 @@ Especially it's important to understand chapter 3 of tutorial:
 
 :doc:`tutorial/LangImpl3`
 
-Reader also should know how passes work in LLVM, he could use next article as a
-reference and start point here:
+Reader also should know how passes work in LLVM, they could use next article as
+a reference and start point here:
 
 :doc:`WritingAnLLVMPass`
 
@@ -88,7 +88,7 @@ part describes the merging process.
 In every part author also tried to put the contents into the top-down form.
 First, the top-level methods will be described, while the terminal ones will be
 at the end, in the tail of each part. If reader will see the reference to the
-method that wasn't described yet, he will find its description a bit below.
+method that wasn't described yet, they will find its description a bit below.
 
 Basics
 ======

utils/unittest/googletest/include/gtest/gtest.h

@@ -74,7 +74,7 @@
 // define it to 0 to indicate otherwise.
 //
 // If the user's ::std::string and ::string are the same class due to
-// aliasing, he should define GTEST_HAS_GLOBAL_STRING to 0.
+// aliasing, they should define GTEST_HAS_GLOBAL_STRING to 0.
 //
 // If the user doesn't define GTEST_HAS_GLOBAL_STRING, it is defined
 // heuristically.

utils/unittest/googletest/include/gtest/internal/gtest-port.h

@@ -503,7 +503,7 @@
 #   define _TR1_FUNCTIONAL 1
 #   include <tr1/tuple>
 #   undef _TR1_FUNCTIONAL  // Allows the user to #include
-                        // <tr1/functional> if he chooses to.
+                        // <tr1/functional> if they chooses to.
 #  else
 #   include <tr1/tuple>  // NOLINT
 #  endif  // !GTEST_HAS_RTTI && GTEST_GCC_VER_ < 40302