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/CodeGen/CGCall.cpp b/clang/lib/CodeGen/CGCall.cpp
index 705998d..5f1fb10 100644
--- a/clang/lib/CodeGen/CGCall.cpp
+++ b/clang/lib/CodeGen/CGCall.cpp
@@ -1810,7 +1810,7 @@
 void CodeGenModule::AddDefaultFnAttrs(llvm::Function &F) {
   llvm::AttrBuilder FuncAttrs;
   ConstructDefaultFnAttrList(F.getName(), F.hasOptNone(),
-                             /* AttrOnCallsite = */ false, FuncAttrs);
+                             /* AttrOnCallSite = */ false, FuncAttrs);
   F.addAttributes(llvm::AttributeList::FunctionIndex, FuncAttrs);
 }
 
@@ -2490,7 +2490,7 @@
         assert(NumIRArgs == 1);
         auto AI = FnArgs[FirstIRArg];
         AI->setName(Arg->getName() + ".coerce");
-        CreateCoercedStore(AI, Ptr, /*DestIsVolatile=*/false, *this);
+        CreateCoercedStore(AI, Ptr, /*DstIsVolatile=*/false, *this);
       }
 
       // Match to what EmitParmDecl is expecting for this type.
@@ -3537,7 +3537,7 @@
 void CallArg::copyInto(CodeGenFunction &CGF, Address Addr) const {
   LValue Dst = CGF.MakeAddrLValue(Addr, Ty);
   if (!HasLV && RV.isScalar())
-    CGF.EmitStoreOfScalar(RV.getScalarVal(), Dst, /*init=*/true);
+    CGF.EmitStoreOfScalar(RV.getScalarVal(), Dst, /*isInit=*/true);
   else if (!HasLV && RV.isComplex())
     CGF.EmitStoreOfComplex(RV.getComplexVal(), Dst, /*init=*/true);
   else {