Fix constructor-related typos.

Noticed by Roman Divacky.

llvm-svn: 190311
diff --git a/clang/lib/CodeGen/CGDebugInfo.cpp b/clang/lib/CodeGen/CGDebugInfo.cpp
index 872fb65..1d70f4c 100644
--- a/clang/lib/CodeGen/CGDebugInfo.cpp
+++ b/clang/lib/CodeGen/CGDebugInfo.cpp
@@ -158,7 +158,7 @@
 }
 
 /// getFunctionName - Get function name for the given FunctionDecl. If the
-/// name is constructred on demand (e.g. C++ destructor) then the name
+/// name is constructed on demand (e.g. C++ destructor) then the name
 /// is stored on the side.
 StringRef CGDebugInfo::getFunctionName(const FunctionDecl *FD) {
   assert (FD && "Invalid FunctionDecl!");