Fix parameter name comments using clang-tidy. NFC.

This patch applies clang-tidy's bugprone-argument-comment tool
to LLVM, clang and lld source trees. Here is how I created this
patch:

$ git clone https://github.com/llvm/llvm-project.git
$ cd llvm-project
$ mkdir build
$ cd build
$ cmake -GNinja -DCMAKE_BUILD_TYPE=Debug \
    -DLLVM_ENABLE_PROJECTS='clang;lld;clang-tools-extra' \
    -DCMAKE_EXPORT_COMPILE_COMMANDS=On -DLLVM_ENABLE_LLD=On \
    -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++ ../llvm
$ ninja
$ parallel clang-tidy -checks='-*,bugprone-argument-comment' \
    -config='{CheckOptions: [{key: StrictMode, value: 1}]}' -fix \
    ::: ../llvm/lib/**/*.{cpp,h} ../clang/lib/**/*.{cpp,h} ../lld/**/*.{cpp,h}

llvm-svn: 366177
diff --git a/clang/lib/Parse/ParseDeclCXX.cpp b/clang/lib/Parse/ParseDeclCXX.cpp
index 81a56a0..9c61c4d 100644
--- a/clang/lib/Parse/ParseDeclCXX.cpp
+++ b/clang/lib/Parse/ParseDeclCXX.cpp
@@ -1208,9 +1208,9 @@
   // We have an identifier; check whether it is actually a type.
   IdentifierInfo *CorrectedII = nullptr;
   ParsedType Type = Actions.getTypeName(
-      *Id, IdLoc, getCurScope(), &SS, /*IsClassName=*/true, false, nullptr,
+      *Id, IdLoc, getCurScope(), &SS, /*isClassName=*/true, false, nullptr,
       /*IsCtorOrDtorName=*/false,
-      /*NonTrivialTypeSourceInfo=*/true,
+      /*WantNontrivialTypeSourceInfo=*/true,
       /*IsClassTemplateDeductionContext*/ false, &CorrectedII);
   if (!Type) {
     Diag(IdLoc, diag::err_expected_class_name);