Fix a tranche of comment, test and doc typos

llvm-svn: 196510
diff --git a/clang/lib/Sema/SemaDeclCXX.cpp b/clang/lib/Sema/SemaDeclCXX.cpp
index 846aba8..499b23f 100644
--- a/clang/lib/Sema/SemaDeclCXX.cpp
+++ b/clang/lib/Sema/SemaDeclCXX.cpp
@@ -10326,7 +10326,7 @@
   SynthesizedFunctionScope Scope(*this, Conv);
   DiagnosticErrorTrap Trap(Diags);
    
-  // Retreive the static invoker...
+  // Retrieve the static invoker...
   CXXMethodDecl *Invoker = Lambda->getLambdaStaticInvoker();
   // ... and get the corresponding specialization for a generic lambda.
   if (Lambda->isGenericLambda()) {